Photo of Karen Thole

Karen Thole

Distinguished Professor

Affiliation(s):

  • Mechanical Engineering

Research Areas:

Energy Systems; Thermal/Fluid Sciences

Interest Areas:

Convective heat transfer, turbulent boundary layers, high freestream turbulence, gas turbine heat transfer.

 
 

 

Education

  • BS, Mechanical Engineering, University of Illinois, 1982
  • MS, Mechanical Engineering, University of Illinois, 1984
  • Ph D, Mechanical Engineering, University of Texas, 1994

Publications

Journal Articles

  • Eric DeShong, B. Peters, Reid A. Berdanier, Karen A Thole, K. Paynabar and Nagi Gabraeel, 2022, "Correlating Time-Resolved Pressure Measurements with Rim Sealing Effectiveness for Real-Time Turbine Health Monitoring", Journal of Turbomachinery, 144, (6)
  • Shawn Siroka, Reid Berdaner and Karen A Thole, 2022, "Two-layer transient heat transfer using impulse response methods", International Journal of Heat and Mass Transfer, 187, (15), pp. 122511
  • Gabriel Stafford, Stephen McClain, David Hansen, Robert Kunz and Karen Thole, 2022, "Convection in scaled turbine internal cooling passages with additive manufacturing roughness", Journal of Turbomachinery, 144, (4), pp. 041008
  • Pete Wilkins, Steve Lynch, Karen A Thole, Tyler Vincent, San Quach and Dominic Mongillo, 2022, "Effect of Ceramic Matrix Composite Surface on Film Cooling", Journal of Turbomachinery, 144, (8), pp. 081014
  • Eric Deshong, Shawn Siroka, Reid Berdanier and Karen A. Thole, 2022, "Evaluating the Influence of Rotor-Casing Eccentricity on Turbine Efficiency Including Time-Resolved Flow Field Measurements", Journal of Turbomachinery, 144, (2), pp. 021012
  • Alexander Wildgoose, Karen A Thole, Paul Sanders and Lieke Wang, 2022, "Impact of Additive Manufacturing on Internal Cooling Channels with Varying Diameters and Build Directions", Journal of Turbomachinery, 143, (7), pp. 071003
  • Shawn Siroka, Reid Berdanier and Karen A Thole, 2022, "Development of Coated Heat Flux Gauges for Fast Responding Measurements", Measurement Science and Technology, 33, pp. pp. 045104
  • Karen A Thole, Steven Lynch and Alexander Wildgoose, 2021, "Review of advances in convective heat transfer developed through additive manufacturing", Advances in Heat Transfer, 53, pp. 249-325
  • Trevor Cory, Ryan Edelson, Karen Thole, Tyler Vincent, San Quach and Dominic Mongillo, 2021, "Impact of Ceramic Matrix Composite Topology on Friction Factor and Heat Transfer", Journal of Turbomachinery, 144, (3), pp. 031003
  • Stephen McClain, David Hansen, Emily Cinnamon, Jacob Snyder, Robert Kunz and Karen Thole, 2021, "Flow in a Simulated Turbine Blade Cooling Channel With Spatially Varying Roughness Caused by Additive Manufacturing Orientation", Journal of Turbomachinery, 143, (7), pp. 071013
  • Nathan Huelsmann and Karen A Thole, 2021, "Effects of Jet Impingement on Convective Heat Transfer in Effusion Holes", Journal of Turbomachinery, 143, (6), pp. 061011
  • Shawn Siroka, Brian Foley, Reid Berdanier and Karen A Thole, 2021, "Application of 3-omega method for thin-film heat flux gauge calibration", Measurement Science and Technology, 32, pp. 114001
  • Brian Knisely, Reid Berdanier, Karen A Thole, Charlie Haldeman, J. Markham, J. Cosgrove, J. Carlson and J. Scire, 2021, "Acquisition and Processing Considerations for Infrared Images of Rotating Turbine Blades", Journal of Turbomachinery, 143, (4), pp. 041013
  • Steven McClain, D. Hanson, E. Cinnamon, J. Snyder, Robert Kunz and Karen A Thole, 2021, "Flow in a Simulated Turbine Blade Cooling Channel with Spatially Varying Roughness Caused by Additive Manufacturing Orientation", Journal of Turbomachinery, 143, (7), pp. 071013
  • Reid A. Berdanier, Eric T. DeShong and Karen A. Thole, 2021, "Evaluating the effects of transient purge flow on stator-rotor seal performance", Journal of Turbomachinery, 143, (2), pp. 021006
  • Pete Wilkins, Stephen Lynch, Karen A Thole, San Quach and Tyler Vincent, 2021, "Experimental Heat Transfer and Boundary Layer Measurements on a Ceramic Matric Composite Surface", Journal of Turbomachinery, 143, (6), pp. 061010
  • Jacob Snyder and Karen A Thole, 2020, "Tailoring surface roughness using additive manufacturing to improve internal cooling", Journal of Turbomachinery, 142, (7), pp. 071004
  • Jacob Snyder and Karen A Thole, 2020, "Effect of additive manufacturing process parameters on turbine cooling", Journal of Turbomachinery, 142, (5), pp. 051007
  • Jacob Snyder and Karen A Thole, 2020, "Performance of public film cooling geometries produced through additive anufacturinmg", Journal of Turbomachinery, 142, (5), pp. 051009
  • Shawn Siroka, Reid Berdanier, Karen A Thole, Kam Chana, Charlie W. Haldeman and Richard J. Anthony, 2020, "Comparison of thin film heat flux gauge technologies emphasizing continuous-duration operation", Journal of Turbomachinery, 142, (9), pp. pp. 091001
  • Ivan Monge-Concepción, Reid Berdanier, Michael Barringer, Karen A Thole and Christopher Robak, 2020, "Evaluating the Effect of Vane Trailing Edge Flow on Turbine Rim Sealing", Journal of Turbomachinery, 142, (8), pp. 081001
  • Siu Ling Leung, B. Hargrove, Eric Marsh, Andrea Gregg and Karen A Thole, 2020, "Prompting by COVID-19 to Rethink the Purpose of Engineering Laboratory Education - Develop Practical Competence to Solve Real-World Problem", Advances in Engineering Education, 8, (4)
  • Reid Berdanier, Ivan Monge-Concepcion, Brian Knisely, Michael Barringer, Karen A Thole and Eric Grover, 2019, "Scaling sealing effectiveness in a stator-rotor cavity for differing blade spans", Journal of Turbomachinery, 141, (5), pp. 51007
  • Adam Shrager and Karen A. Thole, 2018, "Effects of effusion cooling pattern near the dilution hole for a double-walled combustor liner – Part 2: Flowfield measurement", Journal of Engineering for Gas Turbines and Power, 141, (1), pp. 011023
  • Karen A Thole, K. Clark, M. D. Barringer, D. Johnson, E. Grover and C. Robak, 2018, "Effects of purge flow configuration on sealing effectiveness in a rotor-stator cavity", Journal of Engineering for Gas Turbines and Power, 140, (11), pp. 112502
  • K. L. Kirsch and Karen A. Thole, 2018, "Isolating the effects of surface roughness versus wall shape in numerically optimized, additively manufactured micro cooling channels", Experimental Thermal and Fluid Science, 98, pp. 227-238
  • J. Town, J. Straub, D. Straub, J. Black, Karen A Thole and T. Shih, 2018, "State-of-the-art cooling technology for a turbine rotor blade", Journal of Turbomachinery, 140, (7), pp. 071007
  • K Kirsch and Karen A Thole, 2018, "Numerical optimization, characterization, and experimental investigation of additively manufactured communicating microchannels", Journal of Turbomachinery, 140, (11), pp. 111003
  • C Stimpson, J C Snyder and Karen A Thole, 2018, "Effects of coolant feed direction on additively manufactured communicating microchannels", Journal of Turbomachinery, 140, (11), pp. 111001
  • A. Shrager and Karen A. Thole, 2018, "Effects of effusion cooling pattern near the dilution hole for a double-walled combustor liner – Part 1: Overall effectiveness measurements", Journal of Engineering for Gas Turbines and Power, 141, (1), pp. 011022
  • C. K. Stimpson, J. C. Snyder, Karen A Thole and D. Mongillo, 2017, "Effectiveness measurements of additively manufactured film cooling holes", Journal of Turbomachinery, 140, (1), pp. 011009
  • K. Kirsch and Karen A Thole, 2017, "Experimental investigation of numerially optimized wavy microchannels created through additive manufacturing", Journal of Turbomachinery, 140, (2), pp. 021002
  • K. K. Ferster, K. Kirsch and Karen A Thole, 2017, "Effects of geometry, spacing, and number of pin fins in additively manufactured microchannel pin fin arrays", Journal of Turbomachinery, 140, (1), pp. 011007
  • K. Kirsch and Karen A Thole, 2017, "Pressure loss and heat transfer performance for additively and conventionally manufactured pin fin arrays", International Journal of Heat and Mass Transfer, 108, pp. 2502-2513
  • R. P. Schroeder and Karen A Thole, 2016, "Effect of high freestream turbulence on flowfields of shaped film cooling holes", Journal of Turbomachinery, 138, (9), pp. 091001
  • R. Schroeder and Karen A Thole, 2016, "Effect of in-hole roughness on film cooling from a shaped hole", Journal of Turbomachinery, 139, (3), pp. 031004
  • C. Stimpson, J. Snyder, Karen A Thole and D. Mongillo, 2016, "Scaling roughness effects on pressure loss and heat transfer of additively manufactured channels", Journal of Turbomachinery, 139, (2), pp. 021003
  • J. Snyder, C. Stimpson, Karen A Thole and D. Mongillo, 2016, "Build direction effects on additively manufactured channels", Journal of Turbomachinery, 138, (5), pp. 051006
  • C. Stimpson, J. Snyder, Karen A Thole and D. Mongillo, 2016, "Roughness effects on flow and heat transfer for additively manufactured channels", Journal of Turbomachinery, 138, (5), pp. 051008
  • S. Lynch and Karen A Thole, 2016, "Comparison of the three-dimensional boundary layer on flat versus contoured turbine endwalls", Journal of Turbomachinery, 138, (4), pp. 041008
  • A. Mensch and Karen A Thole, 2016, "Overall effectiveness and flowfield measurements for an endwall and non-axisymmetric contouring", Journal of Turbomachinery, 138, (3)
  • A. Mensch and Karen A Thole, 2016, "Effects of non-axisymmetric endwall contouring and film cooling on the passage flowfield in a linear turbine cascade", Experiments in Fluids, 57, (1), pp. 16
  • K. Clark, M. Barringer, Karen A Thole, C. Clum, P. Hiester, C. Memory and C. Robak, 2016, "Effects of purge jet momentum on sealing effectiveness", J. Eng. Gas Turbines Power, 139, (3), pp. 031904
  • K. Clark, Michael D Barringer, Karen A Thole, C. Clum, P. Heister, C. Memory and C. Robak, 2016, "Effects of purge distribution and flowrates on vane rim sealing", Journal of Engineering for Gas Turbines and Power, 139, (3), pp. 031904
  • S. Lynch and Karen A Thole, 2016, "Heat transfer and film cooling on a contoured blade endwall with platform gap leakage", Journal of Turbomachinery, 108, pp. 051002
  • K. Kirsch and Karen A Thole, 2016, "Heat transfer and pressure loss measurements in additively manufactured wavy microchannels", Journal of Turbomachinery, 139(1), pp. 011007
  • R. Schroeder and Karen A Thole, 2016, "Thermal field measurements for a shaped hole at low and high freestream turbulence intensity", Journal of Turbomachinery, 139, (2), pp. 021012
  • R. Schroeder and Karen A Thole, 2016, "Effect of in-hole roughness on film cooling from a shaped hole", Journal of Turbomachinery
  • K. Kirsch and Karen A Thole, 2016, "Heat transfer and pressure loss measurements in additively manufactured wavy microchannels", Journal of Turbomachinery, 139, (1), pp. 011007
  • J. C. Snyder, C. K. Stimpson, Karen A Thole and D. J. Mongillo, 2015, "Build direction effects on micro-channel tolerance and surface roughness", Journal of Mechanical Design, 137, (11), pp. 111411
  • A. Mensch and Karen A Thole, 2015, "Simulations of multiphase particle deposition on a gas turbine endwall with impingement and film cooling", Journal of Turbomachinery, 137, (11), pp. 111002
  • C. A. Whitfield, Karen A Thole, R. P. Schroeder and S. D. Lewis, 2015, "Blockage effects from simulated thermal barrier coatings for cylindrical and shaped holes", Journal of Turbomachinery, 137, (9), pp. 091004
  • K. L. Kirsch and Karen A Thole, 2015, "Heat transfer measurements of oblong pins", Journal of Turbomachinery, 137, (7), pp. 071004
  • A E Mensch and Karen A Thole, 2015, "Conjugate heat transfer analysis of the effects of impingement channel height for a turbine blade endwall", International Journal of Heat and Mass Transfer, 82, pp. 66-77
  • S. Lynch and Karen A Thole, 2015, "Heat transfer and film cooling on a contoured blade endwall with platform gap leakage", Journal of Turbomachinery, 139, (5B), pp. 43301
  • A. E. Mensch, Karen A Thole and B. Craven, 2014, "Conjugate heat transfer measurements and predictions of a blade endwall with a thermal barrier coating", Journal of Turbomachinery, 136, (12), pp. 121003
  • M. K. Eberly and Karen A Thole, 2014, "Time-resolved film-cooling flows at high and low density ratios", Journal of Turbomachinery, 136, (6), pp. 061003
  • M. Barringer, Karen A Thole, V. Krishnan and E. Landrum, 2014, "Manufacturing influences on pressure losses of channel fed holes", Journal of Turbomachinery, 136, (5), pp. 051012
  • K. L. Kirsch, J. K. Ostanek and Karen A Thole, 2014, "Comparison of pin surface heat transfer in arrays of oblong and cylindrical pin fins", Journal of Turbomachinery, 136, (4), pp. 041015
  • A. Mensch and Karen A Thole, 2014, "Overall effectiveness of a blade endwall with jet impingement and film cooling", Journal of Engineering for Gas Turbines and Power, 136, (3), pp. 031901
  • A. A. Thrift, Karen A Thole and S. Hada, 2013, "Impact of the combustor-turbine interface slot orientation on the durability of a nozzle guide vane endwall", Journal of Turbomachinery, 135, (4), pp. 041019
  • S. Lawson, S. Lynch and Karen A Thole, 2013, "Simulations of multi-phase particle deposition on a non-axisymmetric contoured endwall with film-cooling", Journal of Turbomachinery, 135, (3), pp. 031032
  • M. D. Barringer, Karen A Thole, D. L. Breneman, K.-M. Tham and V. Laurello, 2013, "Effects of centrifugal forces on particle deposition for a representative seal pin between two blades", Journal of Engineering for Gas Turbines and Power, 135, (3), pp. 032601
  • G. O. Musgrove, Karen A Thole, E. Grover and J. Barker, 2013, "Performance measurements of a unique louver particle separator for gas turbine engines", Journal of Engineering for Gas Turbines and Power, 135, (1), pp. 012001
  • J. Ostanek and Karen A Thole, 2012, "Effect of streamwise spacing on periodic and random unsteadiness in a bundle of short cylinders confined in a channel", Experiments in Fluids, 53, (6), pp. 1779-1796
  • A. A. Thrift, Karen A Thole and S. Hada, 2012, "Effects of orientation and position of the combustor-turbine interface gap on the cooling of a vane endwall", Journal of Turbomachinery, 134, (6), pp. 061019
  • J. K. Ostanek and Karen A Thole, 2012, "Wake development in staggered short cylinder arrays within a channel", Experiments in Fluids, 53, (3), pp. 673-697
  • J. Ostanek and Karen A Thole, 2012, "Flowfield measurements in a single row of low aspect ratio pin-fins", Journal of Turbomachinery, 134, (5), pp. 051034
  • S. Lawson, Karen A Thole, Y. Okita and C. Nakamata, 2012, "Simulations of multi-phase particle deposition on a showerhead with staggered film-cooling holes", Journal of Turbomachinery, 134, (5), pp. 051041
  • S. Lawson and Karen A Thole, 2012, "Simulations of multi-phase particle deposition on endwall film-cooling holes in transverse trenches", Journal of Turbomachinery, 134, (5), pp. 051040
  • A. A. Thrift and Karen A Thole, 2012, "Influence of flow injection angle on a leading-edge horseshoe vortex", International Journal of Heat and Mass Transfer, 55, (17-18), pp. 4651-4664
  • S. A. Lawson and Karen A Thole, 2012, "Simulations of multi-phase particle deposition on endwall film-cooling", Journal of Turbomachinery, 134, (1), pp. 011003
  • S. Weaver, M. Barringer and Karen A Thole, 2011, "Micro channels with manufacturing roughness levels", Journal of Turbomachinery, 133, (4), pp. 041014
  • A. A. Thrift, Karen A Thole and S. Hada, 2011, "Effects of an axisymmetric contoured endwall on a nozzle guide vane: Adiabatic effectiveness measurements", Journal of Turbomachinery, 133, (4), pp. 041007
  • A. A. Thrift, Karen A Thole and S. Hada, 2011, "Effects of an axisymmetric contoured endwall on a nozzle guide vane: Heat transfer measurements", Journal of Turbomachinery, 133, (4), pp. 041008
  • S. P. Lynch, Karen A Thole, A. Kohli and C. Lehane, 2011, "Computational predictions of heat transfer and film-cooling for a turbine blade with non-axiymmetric endwall contouring", Journal of Turbomachinery, 133, (4), pp. 041003
  • S. Lynch and Karen A Thole, 2011, "The effect of the combustor-turbine slot and mid-passage gap on vane endwall heat transfer", Journal of Turbomachinery, 133, (4), pp. 041002
  • S. A. Lawson, A. A. Thrift, Karen A Thole and A. Kohli, 2011, "Heat transfer from multiple row arrays of low aspect ratio pin fins", International Journal of Heat and Mass Transfer, 54, (17-18), pp. 4099-4109
  • N. D. Cardwell, P. P. Vlachos and Karen A Thole, 2011, "A multi-parametric particle pairing algorithm for particle tracking in single and multiphase flows", Measurement Science and Technology, 22, (10), pp. 105406
  • N. D. Cardwell, P. P. Vlachos and Karen A Thole, 2011, "Developing and fully developed turbulent flow in ribbed channels", Experiments in Fluids, 50, (5), pp. 1357-1371
  • S. A. Lawson and Karen A Thole, 2011, "Effects of simulated particle deposition on film cooling", Journal of Turbomachinery, 133, (2), pp. 021009
  • N. D. Cardwell, P. P. Vlachos and Karen A Thole, 2011, "A method for identifying and visualizing foreign particle motion using time resolved particle tracking velocimetry", Journal of Turbomachinery, 133, (2), pp. 021021
  • M. E. Lyall, A. A. Thrift, Karen A Thole and A. Kohli, 2011, "Heat transfer from low aspect ratio pin fins", Journal of Turbomachinery, 133, (1), pp. 011001
  • W. Colban, Karen A Thole and D. Bogard, 2011, "A film cooling correlation for shaped holes on a flat-plate surface", Journal of Turbomachinery, 133, (1), pp. 011002
  • S. P. Lynch, N. Sundaram, Karen A Thole, A. Kohli and C. Lehane, 2011, "Heat transfer for a turbine blade with non-axisymmetric endwall contouring", Journal of Turbomachinery, 133, (1), pp. 011019
  • S. Hada and Karen A Thole, 2011, "Computational study of a midpassage gap and upstream slot on vane endwall film-cooling", Journal of Turbomachinery, 133, (1), pp. 011024
  • J. Carullo, S. Nasir, R. D. Cress, W. F. Ng, Karen A Thole, L. J. Zhang and H. K. Moon, 2011, "The effects of freestream turbulence, turbulence length scale, and exit Reynolds number on turbine blade heat transfer in a transonic cascade", Journal of Turbomachinery, 133, (1), pp. 011030
  • A. A. Thrift, S. Brumbaugh, Karen A Thole and A. Kohli, 2010, "A methodology to measure aerodynamic forces on cylinders in channel flow", Journal of Fluids Engineering, 132, (8), pp. 081401
  • J. Ostanek, Karen A Thole, J. Prausa and A. Van Suetendael, 2010, "Establishing a methodology for resolving convective heat transfer from complex geometries", Journal of Turbomachinery, 132, (3), pp. 031014
  • N. D. Cardwell, Karen A Thole and S. W. Burd, 2010, "Investigation of sand blocking within impingement and film-cooling holes", Journal of Turbomachinery, 132, (2), pp. 021020
  • N. Sundaram and Karen A Thole, 2009, "Film-cooling flowfields with trenched holes on an endwall", Journal of Turbomachinery, 131, (4), pp. 041007
  • S. Nasir, J. Carullo, W. Ng, Karen A Thole, H. Wu, L. Zhang and H. Moon, 2009, "Effects of large scale high freestream turbulence and exit Reynolds number on turbine vane heat transfer in a transonic cascade", Journal of Turbomachinery, 131, (2), pp. 021021
  • M. D. Barringer, Karen A Thole, M. D. Polanka, J. P. Clark and P. J. Koch, 2009, "Migration of combustor exit profiles through high pressure turbine vanes", Journal of Turbomachinery, 131, (2), pp. 021010
  • M. D. Barringer, Karen A Thole and M. D. Polanka, 2009, "An experimental study of combustor exit profile shapes on endwall heat transfer in high pressure turbine vanes", Journal of Turbomachinery, 131, (2), pp. 021009
  • M. Barringer, Karen A Thole and M. D. Polanka, 2009, "Effects of combustor exit profiles on high pressure turbine vane aerodynamic loading and heat transfer", Journal of Turbomachinery, 131, (2), pp. 021008
  • N. Sundaram, M. D. Barringer and Karen A Thole, 2008, "Effects of deposits on film cooling of a vane endwall along the pressure side", Journal of Turbomachinery, 130, (4), pp. 0410006
  • N. Sundaram and Karen A Thole, 2008, "Bump and trench modifications to film-cooling holes at the vane endwall junction", Journal of Turbomachinery, 130, (4), pp. 041013
  • S. P. Lynch and Karen A Thole, 2008, "The effect of combustor-turbine interface gap leakage on the endwall heat transfer for a nozzle guide vane", Journal of Turbomachinery, 130, (4), pp. 041019
  • W. Colban, Karen A Thole and M. Haendler, 2008, "A comparison of cylindrical and fan-shaped film-cooling holes on a vane endwall at low and high freestream turbulence levels", Journal of Turbomachinery, 130, (3), pp. 031007
  • M. Lawson and Karen A Thole, 2008, "Heat transfer augmentation along the tube wall of a louvered fin heat exchanger using practical delta winglets", International Journal of Heat and Mass Transfer, 51, (9-10), pp. 2346-2360
  • N. Cardwell, N. Sundaram and Karen A Thole, 2007, "The effects of varying the combustor-turbine gap", Journal of Turbomachinery, 129, (4), pp. 756-764
  • N. Sundaram and Karen A Thole, 2007, "Effects of surface deposition, hole blockage, and TBC spallation on vane endwall film-cooling", Journal of Turbomachinery, 129, (3), pp. 599-607
  • J. Scrittore, Karen A Thole and S. Burd, 2007, "Investigation of velocity profiles for effusion cooling of combustor liners", Journal of Turbomachinery, 129, (3), pp. 518-526
  • W. Colban and Karen A Thole, 2007, "Influence of hole shape on the performance of a turbine vane endwall film-cooling scheme", International Journal of Heat and Fluid Flow, 28, (3), pp. 341-356
  • M. D. Barringer, Karen A Thole and M. D. Polanka, 2007, "Experimental evaluation of an inlet profile generator for high-pressure turbine tests", Journal of Turbomachinery, 129, (2), pp. 382-393
  • W. Colban, Karen A Thole and M. Haendler, 2007, "Experimental and computational comparisons of fan-shaped film-cooling on a turbine vane surface", Journal of Turbomachinery, 129, (1), pp. 23-31
  • P. Sanders and Karen A Thole, 2006, "Effects of winglets to augment tube wall heat transfer in louvered fin heat exchangers", International Journal of Heat and Mass Transfer, 49, (21-22), pp. 4058-4069
  • E. A. Sewall, D. K. Tafti, A. Graham and Karen A Thole, 2006, "Experimental validation of large eddy simulations of flow and heat transfer in a stationary ribbed duct", International Journal of Heat and Fluid Flow, 27, (2), pp. 243-258
  • D. G. Bogard and Karen A Thole, 2006, "Gas turbine film cooling", AIAA Journal of Propulsion, 22, (2), pp. 249-270
  • W. Colban, A. Gratton, Karen A Thole and M. Haendler, 2006, "Heat transfer and film-cooling measurements on a stator vane with fan-shaped cooling holes", Journal of Turbomachinery, 128, (1), pp. 53-61
  • N. Cardwell, N. Sundaram and Karen A Thole, 2006, "Effect of midpassage gap, endwall misalignment, and roughness on endwall film-cooling", Journal of Turbomachinery, 128, (1), pp. 62-70
  • Karen A Thole and D. Knost, 2005, "Heat transfer and film-cooling for the endwall of a first stage turbine vane", International Journal of Heat and Mass Transfer, 48, (25-26), pp. 5255-5269
  • E. Hohlfeld, E. Couch, J. Christophel and Karen A Thole, 2005, "Predictions of cooling from dirt purge holes along the tip of a turbine blade", International Journal of Turbo and Jet Engines, 22, (3), pp. 139-152
  • W. Ranson, Karen A Thole and F. Cunha, 2005, "Adiabatic effectiveness measurements and predictions of leakage flows along a blade endwall", Journal of Turbomachinery, 127, (3), pp. 609-618
  • J. R. Christophel, Karen A Thole and F. Cunha, 2005, "Cooling the tip of a turbine blade using pressure side holes—Part 1: Adiabatic effectiveness measurements", Journal of Turbomachinery, 127, (2), pp. 270-277
  • J. R. Christophel, Karen A Thole and F. Cunha, 2005, "Cooling the tip of a turbine blade using pressure side holes—Part 2: Heat Transfer Measurements", Journal of Turbomachinery, 127, (2), pp. 278-286
  • J. R. Christophel, E. Couch, Karen A Thole and F. Cunha, 2005, "Measured adiabatic effectiveness and heat transfer for blowing from the tip of a turbine blade", Journal of Turbomachinery, 127, (2), pp. 251-262
  • D. G. Knost and Karen A Thole, 2005, "Adiabatic effectiveness measurements of endwall film-cooling for a first-stage vane", Journal of Turbomachinery, 127, (2), pp. 297-305
  • S. Vakil and Karen A Thole, 2005, "Flow and thermal field measurements in a combustor simulator relevant to a gas turbine aero-engine", Journal of Engineering for Gas Turbines and Power, 127, (2), pp. 257-267
  • D. Knost and Karen A Thole, 2005, "Computational predictions of endwall film-cooling for a first stage vane", International Journal of Turbo and Jet Engines, 22, (1), pp. 41-58
  • E. Couch, J. R. Christophel, E. Hohlfeld, Karen A Thole and F. Cunha, 2005, "Comparison of measurements and predictions for blowing from the tip of a turbine blade", AIAA Journal of Propulsion and Power, 21, (2), pp. 335-343
  • Y. Pang, E. P. Scott, J. Z. Chen and Karen A Thole, 2005, "Thermal design and optimization methodology for integrated power electronics modules", Journal of Electronic Packaging, 127, (1), pp. 59-66
  • R. Stephan and Karen A Thole, 2005, "Optimization study relevant to louvered fin compact heat exchangers", International Journal of Compact Heat Exchangers, 6, (1), pp. 73-92
  • A. Lethander and Karen A Thole, 2004, "Vane-endwall junction optimization to reduce turbine vane passage adiabatic wall temperatures", AIAA Journal of Propulsion and Power, 20, (6), pp. 1105-1116
  • C. Ebeling and Karen A Thole, 2004, "Measurements and predictions of the heat transfer at the tube-fin junction for louvered fin heat exchangers", International Journal of Compact Heat Exchangers, 5, pp. 265-286
  • S. Stitzel and Karen A Thole, 2004, "Flow field computations of combustor-turbine interactions relevant to a gas turbine engine", Journal of Turbomachinery, 126, (1), pp. 122-129
  • W. F. Colban, A. T. Lethander, Karen A Thole and G. Zess, 2003, "Combustor-turbine interface studies—Part 2: Flow and thermal field measurements", Journal of Turbomachinery, 125, (2), pp. 203-209
  • W. F. Colban, Karen A Thole and G. Zess, 2003, "Combustor-turbine interface studies—Part 1: Endwall effectiveness measurements", Journal of Turbomachinery, 125, (2), pp. 193-202
  • K. Hermanson and Karen A Thole, 2002, "Effect of nonuniform inlet conditions on endwall secondary flows", Journal of Turbomachinery, 124, (4), pp. 623-631
  • M. D. Barringer, O. T. Richard, J. P. Walter, S. M. Stitzel and Karen A Thole, 2002, "Flow Field Simulations of a Gas Turbine Combustor", Journal of Turbomachinery, 124, (3), pp. 508-516
  • A. C. Lyman, R. A. Stephan, Karen A Thole, L. Zhang and S. Memory, 2002, "Scaling of heat transfer coefficients along louvered fins", Experimental Thermal and Fluid Science, 26, (5), pp. 547-563
  • G. A. Zess and Karen A Thole, 2002, "Computational design and experimental evaluation of using a leading edge fillet on a gas turbine vane", Journal of Turbomachinery, 124, (2), pp. 167-175
  • Karen A Thole, R. Radomsky, B. Kang and A. Kohli, 2002, "Elevated freestream turbulence effects on heat transfer for a gas turbine vane", International Journal of Heat and Fluid Flow, 23, (2), pp. 137-147
  • R. Radomsky and Karen A Thole, 2002, "Detailed boundary layer measurements on a turbine stator vane at elevated freestream turbulence levels", Journal of Turbomachinery, 124, (1), pp. 107-118
  • M. Harrington, M. McWaters, D. Bogard, C. Lemmon and Karen A Thole, 2001, "Full-coverage film cooling with short normal injection holes", Journal of Turbomachinery, 123, (4), pp. 798-805
  • R. Radomsky and Karen A Thole, 2000, "High freestream turbulence effects in the endwall leading edge region", Journal of Turbomachinery, 122, (4), pp. 699-708
  • K. Hermanson and Karen A Thole, 2000, "Effect of mach number on secondary flow characteristics", International Journal of Turbo and Jet Engines, 17, (3), pp. 179-196
  • R. Radomsky and Karen A Thole, 2000, "Measurements and predictions of a highly turbulent flowfield in a turbine vane passage", Journal of Fluids Engineering, 122, (4), pp. 666-676
  • M. B. Kang and Karen A Thole, 2000, "Flowfield measurements in the endwall region of a stator vane", Journal of Turbomachinery, 122, (3), pp. 458-466
  • R. Radomsky and Karen A Thole, 2000, "Flowfield measurements for a highly turbulent flow in a stator vane passage", Journal of Turbomachinery, 122, (2), pp. 255-262
  • K. Hermanson and Karen A Thole, 2000, "Effect of inlet conditions on endwall secondary flows", Journal of Propulsion and Power, 16, (2), pp. 286-296
  • M. E. Springer and Karen A Thole, 1999, "Entry region of louvered fin heat exchangers", Experimental Thermal and Fluid Science, 19, (4), pp. 223-232
  • M. Kang, A. Kohli and Karen A Thole, 1999, "Heat transfer and flowfield measurements in the leading edge region of a stator vane endwall", Journal of Turbomachinery, 121, (3), pp. 558-568
  • M. Springer and Karen A Thole, 1998, "Experimental design for flowfield studies of louvered fins", Experimental Thermal and Fluid Science, 18, (3), pp. 258-269
  • Karen A Thole, M. Gritsch, A. Schulz and S. Wittig, 1998, "Flowfield measurements for film-cooling holes with expanded exits", Journal of Turbomachinery, 120, (2), pp. 327-336
  • Karen A Thole, M. Gritsch, A. Schulz and S. Wittig, 1997, "Effects of a crossflow at the entrance to a film-cooling hole", Journal of Fluids Engineering, 119, (3), pp. 533-540
  • Karen A Thole and D. G. Bogard, 1996, "High freestream turbulence effects on turbulent boundary layers", Journal of Fluids Engineering, 118, (2), pp. 276-284
  • M. F. Laudon, Karen A Thole, R. L. Engelstad, D. J. Resnick, K. D. Cummings and W. J. Dauksher, 1995, "Thermal analysis of an X-ray mask membrane in a plasma environment", Journal of Vacuum Science Technology B, 13, (6), pp. 3050-3054
  • Karen A Thole and D. G. Bogard, 1995, "Enhanced heat transfer and shear stress due to high free-stream turbulence", Journal of Turbomachinery, 117, (3), pp. 418-424
  • Karen A Thole, D. G. Bogard and J. Whan-Tong, 1994, "Generating high freestream turbulence levels", Experiments in Fluids, 17, (6), pp. 375-380
  • Karen A Thole and D. G. Bogard, 1994, "Simultaneous temperature and velocity measurements", Measurement Science and Technology, 5, (4), pp. 435-439
  • S. Lynch and Karen A Thole, , "Heat transfer and film cooling on a contoured blade endwall with platform gap leakage", Journal of Turbomachinery, 139, (5), pp. 051002

Conference Proceedings

  • S. Atland, Xiang Yang, Karen A Thole, Rob Kunz and S. McClain, 2022, "Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels", GT2022-81218
  • Thomas Corbett, Karen A Thole and B. Sudhakar, 2022, "Amplitude and Wavelength Effects for Wavy Channels", GT2022-78356
  • Eric DeShong, Reid Berdanier and Karen A Thole, 2022, "Predictive Modelling of Local Film-Cooling Flow on a Turbine Rotor Blade", GT 2022-82507
  • Ryan Edelson and Karen A Thole, 2022, "Impact of Ceramic Matrix Composite Topology on Overall Effectiveness", GT 2022-82326
  • Furgeson, Emma Veley, C. Yoon, D. Bogard and Karen A Thole, 2022, "Development and Evaluation of Shaped Film Cooling Holes Designed for Additive Manufacturing", GT2022-83201
  • D. Gutierrez, C. Yoon, E. Veley, D. Bogard and Karen A Thole, 2022, "Evaluation of Adjoint Optimized Hole – Part I Baseline Performance", GT2022-83436
  • Knisely, R. Berdanier, J. Wagner, Karen A Thole, A. Arisi and Haldeman, 2022, "Effects of Part-to-Part Flow Variations on Overall Effectiveness and Life of Rotating Turbine Blades", GT2022-83216
  • I. Monge-Concepcion, Reid Berdanier, M. Barringer and Karen A Thole, 2022, "Use of Multiple Tracer Gases to Quantify Vane Trailing Edge Flow into Turbine Rim Seals", GT2022-83247
  • M. Rozman, E. DeShong, Karen A Thole, Reid Berdanier and C. Robak, 2022, "Characterizing Flow Instabilities During Transient Events in the Turbine Rim Seal Cavity", GT2022-82664
  • E. Veley, Karen A Thole, M. Furgeson and D. Bogard, 2022, "", Printability and Overall Cooling Performance of Additive Manufactured Holes with Inlet and Exit Rounding, GT2022-83313
  • A. Wildgoose and Karen A Thole, 2022, "Heat Transfer and Pressure Loss of Additively Manufactured Internal Cooling Channels with Various Shapes", GT2022-82298
  • A. Wildgoose, Karen A Thole, R. Subramanian, L. Kersting and A. Kulkarni, 2022, "Impacts of the Additive Manufacturing Process on the Roughness of Engine Scale Vanes and Cooling Channels", GT2022-84603
  • P. Wilkins, S. Lynch, Karen A Thole, T. Vincent, S. Quach and E Kaufman, 2022, "Experimental Investigation into the Effect of a Ceramic Matrix Composite Surface on Film Cooling", GT2022-83109
  • A. Winegardner, A. Lemay, S. Lynch, Karen A Thole and J. O'Connor, 2022, "Energy and the University: The Role of Gas Turbines in US Universities and Strategies for Enhancing Energy Literacy", GT2022-83102
  • Reid A. Berdanier, Scott Fishbone, Karen A. Thole, J. Brogan, J. Mantese, D. Caldwell, A. Kulkarni, R. Subramanian, Emerson and T. Lieuwen, 2021, "Sensor Integration on Additively Manufactured Hot Section Components for Wireless Gas Turbine Prognostics", United States, AIAA-2021-3474
  • Karen A Thole, M. Barringer, R Berdanier, S. Fishbone, J. Wagner, R Dennis, J. Black, P. Burke, Straub, F. O'Neill, C. Stimpson, A. Riahi, A. Aggarwala, S. Bradshaw, A. Kohli, D. Mongillo, J. Rodriguez, M. Fox and Y. Kim, 2021, "Defining a Testbed for the U.S. Turbine Industry: The National Experimental Turbine (NExT)", United States, AIAA-2021-3489
  • S. Leung, E. Marsh, Lynch, S. Brennan, J. Somer, B. Foley, J. Mongeau, T. Wong and K. A. Thole, 2021, "A New Approach to Equip Students to Solve 21st-Century Global Challenges: Integrated Problem-Based Mechanical Engineering Laboratory", ASEE Annual Conference & Exposition, United States
  • A. Gregg, C. Berdanier and K. A. Thole, 2021, "Theoretical and Applied Perspectives on Online Graduate Engineering Education: Learning-Centered Vision, Administration, and Course Design", ASEE Annual Conference & Exposition, United States
  • A. Gregg, E. Marsh, K. A. Th andle, , 2021, "Augmenting Traditional ME Curriculum with Digital Badge Microcredentials", ASEE Annual Conference & Exposition, United States
  • B. Winkelman, R. Kurz, D. Voss and K. A. Thole, 2021, "Collaboration Between Academia and Industry to Advance Industrial Gas Turbines", United States, GT2021-14168
  • Pete Wilkins, Steve Lynch, Karen A Thole, San Quach, Tyler Vincent and Dominic Mongillo, 2021, "Effect of Ceramic Matrix Composite Surface on Film Cooling", ASME TurboExpo, GT2021-59602
  • G. Stafford, Stephen McClain, D Hansen, Rob Kunz and Karen A Thole, 2021, "Convection in Scaled Turbine Internal Cooling Passages with Additive Manufacturing Roughness", GT2021-59684
  • Shawn Siroka, Ivan Monge-Concepcion, Reid Berdanier, Michael Barringer, Karen A Tho ande, Chris , 2021, "Correlating Cavity Sealing Effectiveness to Time-Resolved Rim Seal Events in the Presence of Vane Trailing Edge Flow", ASME TurboExpo, GT2021-59285
  • Eric DeShong, Ben Peters, Reid Berdanier, Karen A Thole, K Paynabar and Nagi Gebraeel, 2021, "Correlating Time-Resolved Pressure Measurements with Rim Sealing Effectiveness for Real-Tim Turbine Health Monitoring", ASME TurboExpo, GT2021-59586
  • Ivan Ivan Monge-Concepcion, SHawn Siroka, Reid Berdanier, Michael Barringer, Karen A Thole and Chris Robak, 2021, "Unsteady Turbine Rim Sealing and Vane Trailing Edge Flow Effects", ASME TurboExpo, GT2021-59273.
  • Eric , Shawn Siroka, Reid Berdanier and Karen A Thole, 2021, "Evaluating the Influence of Rotor-Casing Eccentricity on Turbine Efficiency Including Time-Resolved Flow Field", ASME TurboExpo, GT2021-59112
  • Riley Creer and Karen A Thole, 2021, "Influence of Opposing Dilution Jets on Effusion Cooling", ASME TurboExpo, GT2021-59429
  • Trevor Cory, Ryan Edelson and Karen A Thole, 2021, "Impact of Ceramic Matrix Composite Topology on Friction Factor and Heat Transfer", ASME TurboExpo, GT2021-59588
  • Trevor Cory, Katie Kirsch, Karen A Thole, Ryan Lundgren, Robin Prenter and Stephen Kramer, 2019, "Impact of Dust Feed on Capture Efficiency and Deposition Patterns in a Double-Walled Liner", International Gas Turbine and Aeroengine Congress and Exposition, Phoenix, AZ, University Park, United States, GT2019-90981
  • David Hanson, Stephen McClain, Jacob Snyder, Rob Kunz and Karen A Thole, 2019, "Flow in a Scaled Turbine Coolant Channel with Roughness Due to Additive Manufacturing", ASME TurboExpo, University Park, United States, GT2019-90931
  • K. L. Kirsch, J. C. Snyder, Karen A Thole and D. Mongillo, 2017, "Repeatability in performance of micro cooling geometries manufactured with laser power bed fusion", 53rd AIAA/SAE/ASME Conference, Atlanta, GA
  • K. Kirsch and Karen A Thole, 2017, "Evaluation of the laser powder bed fusion manufacturing technuqie to build numerically optimized micro cooling channels", International Conference on Nanochannels, Microchannels, and Minichannels, Cambridge, MA
  • K. Clark, M. Barringer, D. Johnson, Karen A Thole, E. Grover and C. Robak, 2017, "Effects of purge flow configuration on sealing effectiveness in a rotor-stator cavity", Turbomachinery Technical Conference and Exposition, Charlotte, NC, pp. GT2017-63910
  • J Town, D Straub, J Black, Karen A Thole and T Shih, 2017, "State-of-the-art cooling technology for a turbine rotor blade", Turbomachinery Technical Conference and Exposition, Charlotte, NC, pp. GT2017-64728
  • R. Schroeder and Karen A Thole, 2016, "Thermal field measurements for a shaped hole at low and high freestream turbulence intensity", International Gas Turbine and Aeroengine Congress and Exposition, Seoul, South Korea
  • J. Gibson, Karen A Thole, J. Christophel, C. Memory and T. Praisner, 2016, "Pressure distortion effects on rim seal performance in a linear cascade", International Gas Turbine and Aeroengine Congress and Exposition, Seoul, South Korea
  • K. Clark, M. Barringer, Karen A Thole, C. Clum, P. Hiester, C. Memory and C. Robak, 2016, "Using a tracer gas to quantify sealing effectiveness for engine realistic rim seals", International Gas Turbine and Aeroengine Congress and Exposition, Seoul, South Korea
  • K. Clark, M. Barringer, Karen A Thole, C. Clum, P. Hiester, C. Memory and C. Robak, 2016, "Effects of purge distribution and flowrates on vane rim sealing", International Gas Turbine and Aeroengine Congress and Exposition, Seoul, South Korea
  • K. Kirsch and Karen A Thole, 2016, "Heat transfer and pressure loss measurements in additively manufactured wavy microchannels", International Gas Turbine and Aeroengine Congress and Exposition, Seoul, South Korea
  • C. Stimpson, J. Snyder, Karen A Thole and D. Mongillo, 2016, "Scaling roughness effects on pressure loss and heat transfer of additively manufactured channels", International Gas Turbine and Aeroengine Congress and Exposition, Seoul, South Korea
  • Michael P Alley, Chris Haas and Karen A Thole, 2016, "Engineering Ambassadors Network: Progress in 2015 on Creating a National Network of Ambassadors", University Park, United States
  • S. P. Lynch and Karen A Thole, 2015, "Heat transfer and film cooling on a contoured blade endwall with platform gap leakage", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • S. P. Lynch and Karen A Thole, 2015, "Comparison of the three-dimensional boundary layer on flat versus contoured turbine endwalls", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • A. Mensch and Karen A Thole, 2015, "Overall effectiveness and flowfield measurements for an endwall with non-axisymmetric contouring", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • R. P. Schroeder and Karen A Thole, 2015, "Effect of high freestream turbulence on flowfields of shaped film cooling holes", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • J. Snyder, C. Stimpson, Karen A Thole and D. Mongillo, 2015, "Build direction effects on additively manufactured channels", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • C. Stimpson, J. Snyder, Karen A Thole and D. Mongillo, 2015, "Roughness effects on flow and heat transfer for additively manufactured channels", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • J. Gibson and Karen A Thole, 2015, "Effects of the main gas path pressure field on rim seal flows in a stationary linear cascade", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • R. P. Schroeder and Karen A Thole, 2014, "Adiabatic effectiveness measurements for a baseline shaped film cooling hole", International Gas Turbine and Aeroengine Congress and Exposition, Dusseldorf, Germany
  • M. D. Barringer, A. C. Coward, K. Clark, Karen A Thole, J. Schmitz, J. Wagner, M. A Alvin, P. Burke and R. Dennis, 2014, "Development of a steady aero thermal research turbine (START) for studying secondary flow leakages and airfoil heat transfer", International Gas Turbine and Aeroengine Congress and Exposition, Dusseldorf, Germany
  • K. L. Kirsch, J. K. Ostanek, Karen A Thole and E. Kaufman, 2014, "Heat transfer measurements for pin fin arrays row removal", International Gas Turbine and Aeroengine Congress and Exposition, Dusseldorf, Germany
  • A. Mensch and Karen A Thole, 2014, "Simulations of multiphase particle deposition on a gas turbine endwall with impingement and film cooling", International Mechanical Engineering Congress and Exposition
  • A. Mensch, Karen A Thole and B. A. Craven, 2014, "Conjugate heat transfer mesurements and predictions of a blade endwall with a thermal barrier coating", International Gas Turbine and Aeroengine Congress and Exposition, Dusseldorf, Germany
  • C. A. Whitfield, R. P. Schroeder, Karen A Thole and S. D. Lewis, 2014, "Blockage effects from simulated thermal barrier coatings for cylindrical and shaped holes", International Gas Turbine and Aeroengine Congress and Exposition, Dusseldorf, Germany
  • K. L. Kirsch and Karen A Thole, 2014, "Heat transfer measurements for oblong pins", International Gas Turbine and Aeroengine Congress and Exposition, Dusseldorf, Germany
  • Karen A Thole, M. Marshall, M. Alley and S. Zappe, 2013, "Engineering Ambassador Network: Dissemination through an inaugural national workshop", American Society of Engineering Education Conference, Atlanta, GA
  • M. J. Hargather and Karen A Thole, 2013, "Characterization of flow through porous metals", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • J. Hatzell, M. Marshall, M. Alley, Karen A Thole, J. Garner, C. Haas and R. Engel, 2013, "Engineering Ambassador Network: Professional development programs with an outreach focus", American Society of Engineering Education Conference, Atlanta, GA
  • M. Barringer, Karen A Thole, V. Krishnan, E. Landrum and P. Sanders, 2013, "Manufacturing influences on pressure losses of channel fed holes", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • M. K. Eberly and Karen A Thole, 2013, "Time-resolved film-cooling flows at high and low density ratios", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • S. P. Lynch, Karen A Thole, A. Kohli and C. Lehane, 2013, "Endwall heat transfer for a turbine blade with an upstream cavity and rim seal leakage", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • S. P. Lynch, Karen A Thole, A. Kohli and C. Lehane, 2013, "Aerodynamic loss for a turbine blade with endwall leakage features and contouring", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • A. Mensch and Karen A Thole, 2013, "Overall effectiveness of a blade endwall with jet impingement and film cooling", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • K. L. Kirsch, J. K. Ostanek and Karen A Thole, 2013, "Comparison of pin surface heat transfer in arrays of oblong and cylindrical pin fins", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • J. K. Ostanek and Karen A Thole, 2013, "Effects of non-uniform streamwise spacing in low aspect ratio pin fin arrays", International Gas Turbine and Aeroengine Congress and Exposition, San Antonio, TX
  • G. O. Musgrove, Karen A Thole, E. Grover and J. Barker, 2012, "Performance measurements of a unique louver particle separator for gas turbine engines", International Gas Turbine and Aeroengine Congress and Exposition, Copenhagen, Denmark
  • S. Lawson, S. Lynch and Karen A Thole, 2012, "Simulations of multi-phase particle deposition on a non-axisymmetric contoured endwall with film-cooling", International Gas Turbine and Aeroengine Congress and Exposition, Copenhagen, Denmark
  • A. A. Thrift, Karen A Thole and S. Hada, 2012, "Impact of the combustor-turbine interface slot orientationon the durability of a nozzle guide vane endwall", International Gas Turbine and Aeroengine Congress and Exposition, Copenhagen, Denmark
  • M. D. Barringer, Karen A Thole, D. L. Breneman, K.-M. Tham and V. Laurello, 2012, "Effects of centrifugal forces on particle deposition for a representative seal pin between two blades", International Gas Turbine and Aeroengine Congress and Exposition, Copenhagen, Denmark
  • J. Ostanek and Karen A Thole, 2011, "Flowfield measurements in a single row of low aspect ratio pin-fins", International Gas Turbine and Aeroengine Congress and Exposition, Vancouver, Canada
  • A. Thrift, Karen A Thole and S. Hada, 2011, "Effects of orientation and position of the combustor-turbine interface gap on the cooling of a vane endwall", International Gas Turbine and Aeroengine Congress and Exposition, Vancouver, Canada
  • S. Lawson and Karen A Thole, 2011, "Simulations of multi-phase particle deposition on a showerhead with staggered film-cooling holes", International Gas Turbine and Aeroengine Congress and Exposition, Vancouver, Canada
  • S. Lawson and Karen A Thole, 2011, "Simulations of multi-phase particle deposition on endwall film-cooling holes in transverse trenches", International Gas Turbine and Aeroengine Congress and Exposition, Vancouver, Canada
  • M. Marshall, M. Alley, S. Zappe, Karen A Thole, M. Frecker and R. Engel, 2010, "Ambassador program for recruiting girls into engineering—Appropriate messages, messengers, and modes of delivery", 40th ASEE/IEEE Frontiers in Engineering Conference, T1A, October 27-30, Washington, DC
  • S. Weaver, M. Barringer and Karen A Thole, 2010, "Micro channels with manufacturing roughness levels", International Gas Turbine and Aeroengine Congress and Exposition, Glasgow, Scotland
  • A. A. Thrift, Karen A Thole and S. Hada, 2010, "Effects of an axisymmetric contoured endwall on a nozzle guide vane: Heat transfer measurements", International Gas Turbine and Aeroengine Congress and Exposition, Glasgow, Scotland
  • A. A. Thrift, Karen A Thole and S. Hada, 2010, "Effects of an axisymmetric contoured endwall on a nozzle guide vane: Adiabatic effectiveness measurements", International Gas Turbine and Aeroengine Congress and Exposition, Glasgow, Scotland
  • S. A. Lawson and Karen A Thole, 2010, "Simulations of multi-phase particle deposition on endwall film-cooling", International Gas Turbine and Aeroengine Congress and Exposition, Glasgow, Scotland
  • S. P. Lynch, Karen A Thole, A. Kohli and C. Lehane, 2010, "Computational predictions of heat transfer and film-cooling for a turbine blade with non-axisymmetric endwall contouring", International Gas Turbine and Aeroengine Congress and Exposition, Glasgow, Scotland
  • S. Lynch and Karen A Thole, 2009, "The effect of the combustor-turbine slot and mid-passage gap on vane endwall heat transfer", International Mechanical Engineering Congress and Exposition, Orlando, FL
  • D. G. Knost, Karen A Thole and A. Duggleby, 2009, "Evaluating a three-dimensional slot design for the combustor-turbine interface", International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL
  • S. A. Lawson and Karen A Thole, 2009, "The effects of simulated particle deposition on film cooling", International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL
  • G. O. Musgrove, M. D. Barringer, Karen A Thole, E. Grover and J. Barker, 2009, "Computational design of a louver particle separator for gas turbine engines", International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL
  • S. P. Lynch, N. Sundaram, Karen A Thole, A. Kohli and C. Lehane, 2009, "Heat transfer for a turbine blade with non-axisymmetric endwall contouring", International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL
  • N. Cardwell, P. Vlachos and Karen A Thole, 2008, "Developing and fully developed turbulent flow in ribbed channels", Fluids Engineering Conference
  • Karen A Thole, J. Ostanek, J. Prausa and A. Van Suetendael, 2008, "Establishing a methodology for resolving convective heat transfer from complex geometries", International Gas Turbine and Aeroengine Congress and Exposition, Berlin, Germany
  • N. Sundaram and Karen A Thole, 2008, "Film-cooling flowfields with trenched holes on an endwall", International Gas Turbine and Aeroengine Congress and Exposition, Berlin, Germany
  • W. Colban, Karen A Thole and D. Bogard, 2008, "A film cooling correlation for shaped holes on a flat-plate surface", International Gas Turbine and Aeroengine Congress and Exposition, Berlin, Germany
  • C. Land, Karen A Thole and C. Joe, 2008, "Considerations of a double-wall cooling design to reduce sand blockage", International Gas Turbine and Aeroengine Congress and Exposition, Berlin, Germany
  • N. Cardwell, Karen A Thole and S. Burd, 2008, "Investigation of sand blocking within impingement and film-cooling holes", International Gas Turbine and Aeroengine Congress and Exposition, Berlin, Germany
  • S. Nasir, J. Carullo, W. Ng, Karen A Thole, H. Wu and H. K. Moon, 2007, "Effects of large scale high freestream turbulence and exit Reynolds number on turbine vane heat transfer in a transonic cascade", International Mechanical Engineering Congress, Seattle, WA
  • M. D. Barringer, Karen A Thole, M. D. Polanka, J. P. Clark and P. J. Koch, 2007, "Migration of combustor exit profiles through high pressure turbine vanes", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • M. D. Barringer, Karen A Thole and M. D. Polanka, 2007, "An experimental study of combustor exit profile shapes on endwall heat transfer in high pressure turbine vanes", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • N. Sundaram and Karen A Thole, 2007, "Bump and trench modifications to film-cooling holes at the vane endwall junction", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • N. Sundaram, M. D. Barringer and Karen A Thole, 2007, "Effects of deposits on film cooling of a vane endwall along the pressure side", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • S. P. Lynch and Karen A Thole, 2007, "The effect of combustor-turbine interface gap leakage on the endwall heat transfer for a nozzle guide vane", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • M. E. Lyall, A. A. Thrift, Karen A Thole, A and Kohli, 2007, "Heat transfer from low aspect ratio pin fins", International Gas Turbine and Aeroengine Congress and Exposition, Montreal, Canada
  • S. Hada and Karen A Thole, 2006, "Effect of the midpassage gap leakage on the turbine endwall", 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Hawaii
  • S. Hada and Karen A Thole, 2006, "Computational study of a midpassage gap and upstream slot on vane endwall film-cooling", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • S. Walsh, Karen A Thole and C. Joe, 2006, "Effects of sand ingestion on the blockage of film-cooling holes", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • M. Barringer, Karen A Thole and M. D. Polanka, 2006, "Effects of combustor exit profiles on high pressure turbine vane aerodynamics and heat transfer", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • V. Kunze, M. Wolff, M. Barringer, Karen A Thole and M. Polanka, 2006, "Numerical insight into flow and thermal patterns within an inlet profile generator comparing to experimental results", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • J. Scrittore, Karen A Thole and S. Burd, 2006, "Investigation of velocity profiles for effusion cooling of a combustor liner", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • M. Barringer, Karen A Thole and M. Polanka, 2006, "Experimental evaluation of an inlet profile generator for high pressure turbine tests", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • N. Cardwell, S. Narayan and Karen A Thole, 2006, "The effects of varying the combustor-turbine gap", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • W. Colban, Karen A Thole and M. Haendler, 2006, "A comparison of cylindrical and fan-shaped film-cooling holes on a vane endwall at low and high freestream turbulence levels", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • S. Narayan and Karen A Thole, 2006, "Effects of surface deposition, hole blockage, and TBC spallation on vane endwall film-cooling", International Gas Turbine and Aeroengine Congress and Exposition, Barcelona, Spain
  • J. Scrittore, Karen A Thole and S. Burd, 2005, "Experimental characterization of film-cooling effectiveness near combustor dilution holes", International Gas Turbine and Aeroengine Congress and Exposition, Reno, NV
  • W. Colban, Karen A Thole and M. Haendler, 2005, "Heat transfer and film-cooling measurements on a stator vane with fan-shaped cooling holes", International Gas Turbine and Aeroengine Congress and Exposition, Reno, NV
  • N. Cardwell, N. Sundaram and Karen A Thole, 2005, "Effects of roughness and mid-passage gap on endwall film cooling", International Gas Turbine and Aeroengine Congress and Exposition, Reno, NV
  • W. Colban, Karen A Thole and M. Haendler, 2005, "Experimental and computational comparisons of fan-shaped film-cooling on a turbine vane surface", International Mechanical Engineering Congress and Exposition, Orlando, FL
  • V. R. Kunze, M. Wolff, M. D. Barringer, Karen A Thole and M. D. Polanka, 2005, "Numerical modeling of flow and thermal patterns within a combustor simulator", International Gas Turbine and Aeroengine Congress and Exposition, Reno, NV
  • J. R. Christophel, Karen A Thole and F. Cunha, 2004, "Cooling the tip of a turbine blade using pressure side holes—Part 1: Adiabatic effectiveness measurements", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • J. R. Christophel, Karen A Thole and F. Cunha, 2004, "Cooling the tip of a turbine blade using pressure side holes—Part 2: Heat Transfer Measurements", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • J. R. Christophel, E. Couch, Karen A Thole and F. Cunha, 2004, "Measured adiabatic effectiveness and heat transfer for blowing from the tip of a turbine blade", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • A. C. Smith, J. H. Hatchett, A. C. Nix, W. F. Ng and Karen A Thole, 2004, "Effectiveness of normal and angled slot cooling", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • V. R. Kunze, M. Wolff, M. Barringer, Karen A Thole and M. Polanka, 2004, "Developing a combustor simulator for investigating high pressure turbine aerodynamics and heat transfer", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • D. G. Knost and Karen A Thole, 2004, "Adiabatic effectiveness measurements of endwall film-cooling for a first stage vane", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • A. Graham and Karen A Thole, 2004, "Flowfield measurements in a ribbed channel relevant to internal turbine blade cooling", International Gas Turbine and Aeroengine Congress and Exposition, Vienna, Austria
  • W. Ranson, Karen A Thole and F. Cunha, 2004, "Adiabatic effectiveness measurements and predictions of leakage flows along a blade endwall", International Mechanical Engineering Congress and Exposition, Anaheim, CA
  • A. Lethander, Karen A Thole, G. Zess and J. Wagner, 2003, "Optimizing the vane-endwall junction to reduce adiabatic wall temperatures in a turbine vane passage", International Gas Turbine and Aeroengine Congress and Exposition, Atlanta, GA
  • D. Knost and Karen A Thole, 2003, "Computational predictions of endwall film-cooling for a first stage vane", International Gas Turbine and Aeroengine Congress and Exposition, Atlanta, GA
  • E. Hohlfeld, E. Couch, J. Christophel and Karen A Thole, 2003, "Predictions of cooling from dirt purge holes along the tip of a turbine blade", International Gas Turbine and Aeroengine Congress and Exposition, Atlanta, GA
  • S. Vakil and Karen A Thole, 2003, "Flow and thermal field measurements in a combustor simulator relevant to a gas turbine aero-engine", International Gas Turbine and Aeroengine Congress and Exposition, Atlanta, GA
  • S. Stitzel and Karen A Thole, 2003, "Flow field computations of combustor-turbine interactions relevant to a gas turbine engine", International Gas Turbine and Aeroengine Congress and Exposition, Atlanta, GA
  • Y. F. Pang, J. Z. Chen, E. P. Scott and Karen A Thole, 2002, "Electrical and thermal layout design and optimization considerations for DPS active IPEM", International Mechanical Engineering Congress and Exposition, New Orleans, LA
  • A. Nix, A. C. Smith, T. E. Diller, W. F. Ng and Karen A Thole, 2002, "High intensity, large length scale, freestream turbulence generation in a transonic turbine cascade", International Gas Turbine and Aeroengine Congress and Exposition, Amsterdam, Netherlands
  • K. Hermanson and Karen A Thole, 2002, "Effect of nonuniform inlet conditions on endwall secondary flows", International Gas Turbine and Aeroengine Congress and Exposition, Amsterdam, Netherlands
  • W. F. Colban, A. T. Lethander, Karen A Thole and G. Zess, 2002, "Combustor-turbine interface studies—Part 2: Flow and thermal field measurements", International Gas Turbine and Aeroengine Congress and Exposition, Amsterdam, Netherlands
  • W. F. Colban, Karen A Thole and G. Zess, 2002, "Combustor-turbine interface studies—Part 1: Endwall effectiveness measurements", International Gas Turbine and Aeroengine Congress and Exposition, Amsterdam, Netherlands
  • Karen A Thole, B. Radmosky, M. Kang and A. Kohli, 2001, "Elevated freestream turbulence effects on heat transfer for a gas turbine vane", Turbulent Heat Transfer Conference, Anchorage, AK
  • M. Harrington, M. McWaters, D. Bogard, C. Lemmon and Karen A Thole, 2001, "Full-coverage film cooling with short normal injection holes", International Gas Turbine and Aeroengine Congress and Exposition, New Orleans, LA
  • R. Radomsky and Karen A Thole, 2001, "Detailed boundary layer measurements on a turbine stator vane at elevated freestream turbulence levels", International Gas Turbine and Aeroengine Congress and Exposition, New Orleans, LA
  • M. D. Barringer, O. T. Richard, J. P. Walter, S. M. Stitzel and Karen A Thole, 2001, "Flow field simulations of a gas turbine combustor", International Gas Turbine and Aeroengine Congress and Exposition, New Orleans, LA
  • G. A. Zess and Karen A Thole, 2001, "Computational design and experimental evaluation of using a leading edge fillet on a gas turbine vane", International Gas Turbine and Aeroengine Congress and Exposition, New Orleans, LA
  • R. Radomsky and Karen A Thole, 2000, "High freestream turbulence effects in the endwall leading edge region", International Gas Turbine and Aeroengine Congress and Exposition, Munich, Germany
  • C. Lemmon, A. Kohli and Karen A Thole, 1999, "Formation of counter-rotating vortices in film-cooling flows", International Gas Turbine and Aeroengine Congress and Exposition, Indianapolis, IN
  • L. W. Zhang, S. B. Memory, J. P. Wattelet, M. E. Springer and Karen A Thole, 1999, "A combined experimental and computational study of flowfields in a louvered fin heat exchanger", VTMS 4, ICE, London, United Kingdom
  • R. Radomsky and Karen A Thole, 1999, "Highly turbulent flowfield measurements around a stator vane", International Gas Turbine and Aeroengine Congress and Exposition, Indianapolis, IN
  • M. Kang and Karen A Thole, 1999, "Flowfield measurements in the endwall region of a stator vane", International Gas Turbine and Aeroengine Congress and Exposition, Indianapolis, IN
  • K. Hermanson and Karen A Thole, 1999, "Effect of inlet conditions on endwall secondary flows", AIAA Aerospace Meeting, Reno, NV
  • A. Kohli and Karen A Thole, 1998, "Entrance effects on a diffused film-cooling hole", International Gas Turbine and Aeroengine Congress and Exposition, Stockholm, Sweden
  • M. Springer, Karen A Thole, L. W. Zhang, S. B. Memory and J. P. Wattelet, 1998, "A combined CFD and LDV study of flowfields in louvered fin heat exchangers", ASME Fluids Engineering Division Meeting
  • M. Kang, A. Kohli and Karen A Thole, 1998, "Heat transfer and flowfield measurements in the leading edge region of a stator vane endwall", International Gas Turbine and Aeroengine Congress and Exposition, Stockholm, Sweden
  • R. Radomsky and Karen A Thole, 1998, "Effects of high freestream turbulence levels and length scales on stator vane heat transfer", International Gas Turbine and Aeroengine Congress and Exposition, Stockholm, Sweden
  • B. Bangert, A. Kohli, J. Sauer and Karen A Thole, 1997, "High freestream turbulence simulation in a scaled-up turbine vane passage", International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL
  • A. Kohli and Karen A Thole, 1997, "A CFD investigation on the effect of entrance flow conditions in discrete film cooling holes", 32nd National Heat Transfer Conference, 12, pp. 223-232
  • C. Martin and Karen A Thole, 1997, "A CFD benchmark study: Leading edge film cooling with compound angle injection", International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL
  • S. Wittig, A. Schulz, M. Gritsch and Karen A Thole, 1996, "Transonic film cooling investigations: Effects of hole shapes and orientations", International Gas Turbine and Aeroengine Congress and Exposition, Birmingham, England
  • Karen A Thole, M. Gritsch, A. Schulz and S. Wittig, 1996, "Flowfield measurements for cooling holes with expanded exits", International Gas Turbine and Aeroengine Congress and Exposition, Birmingham, England
  • M. F. Laudon, R. L. Engelstad, Karen A Thole, W. J. Dauksher, D. J. Resnick, K. D. Cummings, P. Seese and W. Johnson, 1995, "Modeling of in-plane distortions due to variations in absorber stress", International Micro- and Nano- Engineering, Aix-en-Provence, France
  • M. F. Laudon, Karen A Thole, R. L. Engelstad, D. J. Resnick, K. D. Cummings and W. J. Dauksher, 1995, "Thermal analysis of X-ray mask membrane in a plasma environment", 39th International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication, Phoenix, AZ
  • Karen A Thole and D. G. Bogard, 1994, "Enhanced heat transfer and skin friction due to high freestream turbulence", International Gas Turbine and Aeroengine Congress and Exposition, The Hague, Netherlands
  • Karen A Thole, J. Whan-Tong and D. G. Bogard, 1991, "Generation of very high freestream turbulence levels and the effects on heat transfer", Turbulent Shear Flow Conference, Munich, Germany, pp. 27.5.1-27.5.7
  • Karen A Thole, A. Sinha, D. G. Bogard and M. E. Crawford, 1990, "Mean temperature measurements of jets with a crossflow for gas turbine film cooling application", Hemisphere Publishing Corporation, New York, NY, pp. 69-85

Research Projects

  • July 2021 - June 2025, "Leading Advanced Turbine Research for Hybrid Electric Propulsion Systems," (Sponsor: National Aeronautics and Space Administration).
  • January 2022 - December 2024, "Hybrid Thermally Efficiency Core High Pressure Turbine Technologies," (Sponsor: NASA).
  • October 2020 - October 2024, "Supporting the Navy Educational Workforce Through Diversity and Inclusion," (Sponsor: Office of Naval Research).
  • November 2020 - September 2023, "Novel Hot Gas Path Components for Gas Turbine Engines Enabled by Materials and AM Process Development - Reduced Scope," (Sponsor: Battelle - Oak Ridge National Laboratory).
  • September 2020 - August 2022, "NAVY STTR Phase II: Conjugate heat transfer for LES of gas turbine engines," (Sponsor: Cascade Technologies).
  • February 2020 - September 2022, "Turbine Cooling through Additive Manufacturing - 56," (Sponsor: Federal Aviation Administration).
  • July 2019 - July 2022, "INTEGRATION OF SENSORS THROUGH ADDITIVE MANUFACTURING LEADING TO INCREASED EFFICIENCIES OF GAS TURBINES FOR POWER GENERATION AND PROPULSION," (Sponsor: Energy Advanced Research Projects Agency).
  • October 2015 - September 2022, "Improving Turbine Efficiencies through Heat Transfer and Aerodynamic Research in the Steady Thermal Aero Research Turbine (START)," (Sponsor: U.S. Department of Energy).

Honors and Awards

  • Fellow, AIAA, 2021
  • Air Breathing Propulsion Award, AIAA, 2019
  • 2017 Propulsion Technical Committee Best Paper, 53rd AIAA/SAE/ASME Joint Propulsion Conference, 2017
  • Claire L. Felbinger Award for Diversity, ABET, 2017
  • Gas Turbine Best Heat Transfer Paper, ASME, 2016
  • Edwin F. Church Medal for Mechanical Engineering Education, ASME, 2016
  • College of Engineering's Distinguished Service Alumni Award, University of Illinois, 2016
  • George Westinghouse Gold Medal, ASME, 2015
  • Distinguished Service Award, ASME, 2015
  • Howard B. Palmer Faculty Mentoring Award, The Pennsylvania State University, 2015
  • Distinguished Engineering Educator Award, Society of Women Engineers (SWE), 2014
  • Distinguished Alumnae for the Mechanical Science and Engineering Department, University of Illinois, 2013
  • Gas Turbine Best Heat Transfer Paper, ASME, 2013
  • Rosemary Schraer Mentoring Award, The Pennsylvania State University, 2012
  • U. S. White House "Champion of Change" in Science, Technology, Engineering, and Math, U. S. Government, 2011
  • Gas Turbine Best Heat Transfer Paper, ASME, 2009
  • W. M. Rohsenow Best Presentation for Gas Turbine Heat Transfer, ASME, 2009
  • Gas Turbine Best Heat Transfer Paper, ASME, 2009 - 2009
  • Distinguished Service Award, ASME, 2008
  • Gas Turbine Best Heat Transfer Paper, ASME, 2005
  • American Society of Mechanical Engineers, Fellow, ASME, 2004
  • Mechanical Engineering Distinguished Alumnae, University of Texas, 2004
  • Fellow, ASME, 2004
  • W. M. Rohsenow Best Presentation for Gas Turbine Heat Transfer, ASME, 1997
  • National Science Foundation CAREER Award, National Science Foundation, 1996
  • Thermophysics Award, AIAA, April 2022

Service

Service to Penn State:

Service to External Organizations:

  • Participation in or Service to Professional and Learned Societies, Member, AIAA, Gas Turbine Engine, January 2021 - December 2023
  • Service to Business and Industry, Committee Member, Sub-Committee Chair, Gas Turbine Association, Government Relations, December 2021
  • Participation in or Service to Professional and Learned Societies, Board Member, IGTI Executive Committee, ASME, July 2021
  • Testifying as an Expert Witness, Presenter, Congressional Testimony, U.S. House of Rep Committee on Science, Space & Technology, March 2021
  • Service to Public and Private Organizations, Committee Member, Gas Turbine Development, National Academies of Sciences, Engineering, Medicine, 2019 - 2020
  • Participation in or Service to Professional and Learned Societies, Board Member, ASME Board of Governor, ASME, July 2018 - June 2020
  • Service to Governmental Agencies, Co-Chairperson, Low Carbon Aviation Study Committee, National Academies of Sciences, Engineering, Medicine, 2018 - 2019
 


 

About

With more than 60 faculty members, 330 graduate students, and 800 undergraduate students, the Penn State Department of Mechanical Engineering embraces a culture that welcomes individuals with a diversity of backgrounds and expertise. Our faculty and students are innovating today what will impact tomorrow’s solutions to meeting our energy needs, homeland security, biomedical devices, and transportation systems. We offer B.S. degrees in mechanical engineering as well as resident (M.S., Ph.D.) and online (M.S.) graduate degrees in mechanical engineering. See how we’re inspiring change and impacting tomorrow at me.psu.edu.

Department of Mechanical Engineering

137 Reber Building

The Pennsylvania State University

University Park, PA 16802-4400

Phone: 814-865-2519