• 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, 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 multiphase flow processes, and cryogenics and cryocoolers.  The cryogenics related research is carried out at Georgia Tech Cryo Lab (


  • Fellow, American Society of Mechanical Engineers (Since 2004).
  • Executive Editor of Annals of Nuclear Energy for Asia, Australasia, Middle East, and Africa, 2006-present.
  • Registered Professional Mechanical Engineer in California, 1987-present.

Selected Publications

  • Ghiaasiaan, S.M., Two-Phase Flow, Boiling and Condensation in Conventional and Miniature Systems, Cambridge University Press, 2008 (First Edition) and 2017 (Second Edition).
  • Ghiaasiaan, S.M., Convective Transport of Heat and Mass, Cambridge University Press, to appear, December 2010 (First Printing), 2014 (Second Printing).
  • Ghiaasiaan, S.M.  Film and Transition Boiling, in F.A. Kulacki (Editor-in-Chief), Handbook of Thermal Science and Engineering, Springer, to appear in Jan. 2018.
  • Fang, T., Mulcahey, T.I., Taylor, R.P., Spoor P.S., Conrad, T.J., Ghiaasiaan, S.M. “Method for Estimating Off-Axis Pulse Tube Losses”. To appear in Cryogenics.
  • Pathak, M.G., Patel, V.C., Ghiaasiaan, S.M., Mulcahey, T.I., Helvensteijn, B.P.,  Kashani, A., and Feller, J.R. “Hydrodynamic Parameters for ErPr Cryocooler Regenerator Fillers Under Steady and Periodic Flow Conditions,”  Cryogenics, Vol. 58, pp. 68-77 (2013).
  • Sumner, T., and Ghiaasiaan, S.M. “Effects of Fuel Type on the Safety Characteristics of a Sodium Cooled Fast Reactors.Part I: Background, Modeling Tools and Pre-Transient Calculations,” Annals of Nuclear Energy, Vol. 38, pp. 1559-1568; and  Part II: Simulation Results,” Annals of Nuclear Energy, Vol. 38, pp. 1760-1768 (2011).
  • Pathak, M., and Ghiaasiaan, S.M., “Convective Heat Transfer and Thermal Dispersion during Laminar Pulsating Flow in Porous Media,” Int. J. Thermal Science, Vol. 50, pp. 440-448, 2011.
  • Laker, T.S., and Ghiaasiaan, S.M., “Monte-Carlo Simulation of Aerosol Transport in Rising Spherical Bubbles with Internal Circulation,” J. Aerosol Science, Vol. 35, pp. 473-488, 2004.
  • Xie, T., Ghiaasiaan, S.M., Karrila, S., and McDonough, T.J., “Flow Regimes, Gas Holdup, and Bubble Characteristics in Paper Pulp-Water-Gas Three-Phase Slurry Flow,” Chemical Eng. Science, Vol. 58, pp. 1417-1430, 2003 (Chemical Engineering Science’s Most Cited Paper for 2003-2006).
  • Akbar, M.K., and Ghiaasiaan, S.M., “Simulation of Taylor Flow in Capillaries Based on the Volume-of-Fluid Technique,” Industrial & Engineering Chemistry Research, Vol. 45, 5396-5403, 2006.
  • Akbar, M.K., Plummer, D.A., and Ghiaasiaan, S.M., “On Gas-Liquid Two-Phase Flow Regimes in Michrochannels,” Int. J. Multiphase Flow, Vol. 29, pp. 855-865, 2003.
  • Akbar, M.K., Yan, J., and Ghiaasiaan, S.M., “Mechanism of Gas Absorption Enhancement in a Slurry Droplet Containing Reactive, Sparingly Soluble Micro Particles,” Int. J. Heat Mass Transfer, Vol. 46, pp. 4561-4571, 2003.