• Ph.D., University of California, Los Angeles, 1983
  • M.Sc., Imperial College of Science, Technology, and Medicine, University of London, England, 1978
  • B.S., Sharif University of Technology, Tehran, Iran, 1977

Research Areas and Descriptors


Dr. Ghiaasiaan began at Tech in 1991 as an Associate Professor. Prior, he was Senior Staff Scientist at Science Applications International Corporation.


Dr. Ghiaasiaan has performed research on a variety of issues in thermal/fluid science. Prior to joining Georgia Tech, his research was primarily in the areas of nuclear reactor thermal-hydraulics and safety, energy systems, ocean thermal energy conversion, multiphase flow and heat transfer, computational modeling and simulation, and aerosol and particle transport.

At Georgia Tech, in addition to the aforementioned subjects, he has conducted research on flow and heat transfer in microsystems, gas-fibrous slurry three-phase flows, theoretical and computational modeling of various multiphase flow processes, and cryogenics and cryocoolers.


  • American Society of Mechanical Engineers
    • Fellow, 2004
    • National Heat Transfer Conference Best Paper Award, 1999
    • Annals of Nuclear Energy Executive Editor for Asia, Australasia, Middle East, and Africa, 2006-present
    • Chemical Engineering Science Most Cited Paper Award for the 2003-2006 period
    • Science Applications International Corporation Best Paper Award, 1990 and 1988
  • Sigma Xi (Georgia Tech Chapter)
    • Best Ph.D. Thesis Award (Co-Advisor to Clint Chedester), 2003
    • Best Ph.D. Thesis Award (Co-Advisor to Weiman Ren), 1995
  • Registered Professional Mechanical Engineer in California, 1987-present

Representative Publications

S. M. Ghiaasiaan. 2008. Two-Phase Flow, Boiling, and Condensation in Conventional and Miniature Systems. Cambridge University Press.

20. K. Chalfi and S. M. Ghiaasiaan. 2008. Pressure Drop Caused by Flow Area Changes in Capillaries Under Low Flow Conditions. International Journal of Multiphase Flow 34, 2-12.

13. K. Akbar, M.K. and S. M. Ghiaasiaan. 2006. Simulation of Taylor Flow in Capillaries Based on the Volume-of-Fluid Technique.Industrial & Engineering Chemistry Research 45, 5396-5403.

10. S. Cha, et al. 2006. Multi-Dimensional Effects in Pulse Tube Refrigerator. Cryogenics 658-665.

20. Xie, S. M. Ghiaasiaan, S. Karrila, and T. J. McDonough. 2003. Flow Regimes, Gas Holdup, and Bubble Characteristics in Paper Pulp-Water-Gas Three-Phase Slurry Flow. Chemical Engineering Science 58, 1417-1430. (Winner: Chemical Engineering Science’s Most Cited Paper for 2003-2006 Award).