Hong G. Im, Ph.D.


​​​​​Professor of Mechanical Engineering

Research Interest

Hong Im’s research interests are primarily fundamental and practical aspects of combustion and power generation devices using high-fidelity computational modeling.  Recent research topics include ignition/extinction, unsteady flame phenomena, DNS/LES of turbulent reacting flows, nonpremixed edge-flame dynamics, modeling of homogeneous charge compression ignition engines, modelling of sooting flames, and micro-scale power generation.

Selected Publications

  • Physical and chemical effects of low octane gasoline fuels on compression ignition combustion
    J. Badra, Y. Viollet, A. Elwardany, H.G. Im, J. Chang
    Applied Energy, 183, pp. 1197-1208, (2016)
  • Numerical simulations of hollow cone injection and gasoline compression ignition combustion with naphtha fuels
    J. Badra, J. Sim, A. Elwardany, M. Jaasim, Y. Viollet, J. Chang, A. Amer, H. Im
    Proceedings of the ASME 2015 Internal Combustion Engine Division Fall Technical ..., (2016)
  • Direct Numerical Simulations of Statistically Stationary Turbulent Premixed Flames
    H.G. Im, P.G. Arias, S. Chaudhuri, H.A. Uranakara
    Combustion Science and Technology, 188(8), pp. 1182-1198, (2016)
  • A regime diagram for autoignition of homoegeneous reactant mixtures with turbulent velocity and temperature fluctua...
    H.G. Im, P. Pal, M.S. Wooldridge, A.B. Mansfield
    Combust. Sci. Tech., 187:8, 1263-1275, (2015) 



  • Ph.D., Mechanical and Aerospace Engineering, Princeton University, Princeton, 1994
  • M. S., Mechanical Engineering, Seoul National University, Seoul, South Korea, 1988
  • B. S., Mechanical Engineering, Seoul National University, Seoul, South Korea, 1986

Professional Profile


  • 2013 – present: Professor, CCRC, KAUST
  • 2000 – present: Assistant/Associate/Full Professor, Mechanical Engineering, University of Michigan, Ann Arbor, MI.
  • 1996 – 1999: Postdoctoral Researcher, Combustion Research Facility, Sandia National Laboratories, Livermore, CA.
  • 1994 – 1996: Research Fellow, Center for Turbulence Research, Stanford University, Stanford, CA

Scientific and Professional Membership

  • 2007 - present: AIAA, Technical Committee, Propellant and Combustion
  • 2008 - present: Associate Editor, Proceedings of the Combustion Institute
  • 2008 - present: Editorial Board Member, Journal of Combustion
  • Membership: The Combustion Institute, AIAA, ASME, SAE, SIAM, KSEA.


  • 2012: ASME, Fellow
  • 2009: AIAA, Associate Fellow
  • 2004: SAE Ralph R. Teetor Educational Award
  • 2004: Faculty Development Fund, Center for Research on Learning and Teaching, University of Michigan
  • 2002: National Science Foundation, CAREER Award
  • 1990: Grumman Graduate Prize, Princeton University

KAUST Affiliations

  • ​Clean Combustion Research Center (CCRC)
  • Division of Physical Sciences and Engineering (PSE)

Research Interests Keywords

​Advanced modeling of sooting flames modeling of mixed-mode combustion in modern engines dynamics of turbulent premixed flame propagation