Photo of Matthew Rau

Matthew Rau

Assistant Professor


  • Mechanical Engineering

301B Reber Building


Personal or Departmental Website

Research Areas:

Energy and Environment; Energy Systems; Thermal/Fluid Sciences

Interest Areas:

Heat and mass transport in turbulent multiphase flows, flow boiling enhancement, bubble dynamics, particle dynamics, aggregation and breakup of particulate matter, experimental technique development.




  • BS, Mechanical Engineering, University of Dayton, 2009
  • Ph D, Mechanical Engineering, Purdue University, 2016


Journal Articles

  • Yixuan Song and Matthew Rau, 2020, "Viscous fluid flow inside an oscillating cylinder and its extension to Stokes' second problem", Physics of Fluids, 32, pp. 043601
  • Matthew Rau, Steven G. Ackleson and Geoffrey B. Smith, 2018, "Effects of turbulent aggregation on clay floc breakup and implications for the oceanic environment", PLOS ONE, 13, (12), pp. e0207809
  • Tianqi Guo, Matthew Rau, Pavlos P Vlachos and Suresh V Garimella, 2017, "Axisymmetric wall jet development in confined jet impingement", Physics of Fluids, 29, (2), pp. 1-12
  • Matthew Rau, Pavlos P. Vlachos and Suresh V. Garimella, 2016, "A tomographic-PIV investigation of vapor-induced flow structures in confined jet impingement boiling", International Journal of Multiphase Flow, 84, pp. 86-97
  • Matthew Rau, Tianqi Guo, Pavlos P. Vlachos and Suresh V. Garimella, 2016, "Stereo-PIV measurements of vapor-induced flow modifications in confined jet impingement boiling", International Journal of Multiphase Flow, 84, pp. 19-33
  • Matthew Rau, Suresh V. Garimella, Ercan M. Dede and Shailesh N. Joshi, 2015, "Boiling heat transfer from an array of round jets with hybrid surface enhancements", ASME J. Heat Transfer, 137, (7), pp. 1-9

Conference Proceedings

Magazines/Trade Publications


Research Projects

Honors and Awards


Service to Penn State:

Service to External Organizations:




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

Department of Mechanical Engineering

137 Reber Building

The Pennsylvania State University

University Park, PA 16802-4400

Phone: 814-865-2519