Hong G. Im, Associate Professor

Department of Mechanical Engineering

University of Michigan, Ann Arbor, MI 48109-2125

(734)615-5152 (Voice) / (734)647-3170 (Fax) / hgim@umich.edu

 

 

Recent Journal Publications

Hong, S., Wooldridge, M. S., Im, H. G., Assanis, D. N., and Kurtz, E., 2006, “Modeling of Diesel Combustion, Soot and NO Emissions Based on a Modified Eddy Dissipation Concept,” Combustion Science and Technology, in press.

Yoo, C. S. and Im, H. G., “Characteristic Boundary Conditions for Simulations of Compressible Reacting Flows with Multi-Dimensional, Viscous, and Reaction Effects,” Combustion Theory and Modelling, in press (2006).

Yoo, C. S. and Im, H. G., 2006, “Transient Soot Dynamics in Turbulent Nonpremixed Ethylene-Air Counterflow Flames,” Proceedings of the Combustion Institute, 31, in press.

Li, J. and Im, H. G., 2006, “Effects of Dilution on the Extinction Characteristics of Strained Lean Premixed Flames Assisted by Catalytic Reaction,” Proceedings of the Combustion Institute, 31, in press.

Chernovsky, M. K., Atreya, A., and Im, H. G., 2006, “Effect of CO2 Diluent on Fuel versus Oxidizer Side of Spherical Diffusion Flames in Microgravity,” Proceedings of the Combustion Institute, 31, in press.

Kang, S. H., Baek, S. W., and Im, H. G., “Effects of Heat and Momentum Losses on the Stability of Premixed Flames in a Narrow Channel,” Combustion Theory and Modelling, v. 10, 659-681 (2006).

Sankaran, R. and Im, H. G., Effects of Hydrogen Addition on the Markstein Length and Flammability Limit of Stretched Methane/Air Premixed Flames,” Combustion Science and Technology, v. 178, 1585-1611 (2006).

Li, J. and Im, H. G., “Extinction Characteristics of Catalyst-Assisted Combustion in a Stagnation-Point Flow Reactor,” Combustion and Flame, v. 145, 390-400 (2006).

Chen, J. H., Hawkes, E. R., Sankaran, R., Mason, S. D., and Im, H. G., "Direct Numerical Simulation of Ignition Front Propagation in a Constant Volume with Temperature Inhomogeneities: I. Fundamental Analysis and Diagnostics," Combustion and Flame, v. 145, 128-144 (2006).

Yoo, C. S., Wang, Y., Trouve, A., and Im, H. G., “Characteristic Boundary Conditions for Direct Simulations of Turbulent Counterflow Flames,” Combustion Theory and Modelling, v. 9, 617-646 (2005).

Hong, S., Wooldridge, M. S., Im, H. G., Assanis, D. N., and Pitsch, H., “Development and Application of a Comprehensive Soot Model for Computational Engine Studies,” Combustion and Flame, v. 143, 11-26 (2005).

Sankaran, R. and Im, H. G., “Characteristics of Auto-Ignition in a Stratified Iso-Octane Mixture with Exhaust Gases under HCCI Conditions,” Combustion Theory and Modelling, v. 9, 417-432 (2005).

Sankaran, R., Im, H. G., Hawkes, E. R., and Chen, J. H., “The Effects of Nonuniform Temperature Distribution on the Ignition of a Lean Homogeneous Hydrogen-Air Mixture,” Proceedings of the Combustion Institute, v. 30, 875-882 (2005).

Yoo, C. S. and Im, H. G., Transient Dynamics of Edge Flames in a Laminar Nonpremixed Hydrogen-Air Counterflow,Proceedings of the Combustion Institute, v. 30, 349-356 (2005).

Srinivas, S., Dhingra, A., Im, H. G., and Gulari, E., “A Scalable Silicon Microreactor for Preferential CO Oxidation: Performance Comparison with a Tubular Packed-Bed Microreactor,” Applied Catalysis A: General, 274, 285-293 (2004).

Kang, S. H., Im, H. G., and Baek, S. W., “A Computational Study of Saffman-Taylor Instability in Premixed Flames,” Combustion Theory and Modelling, v. 7, n. 2, pp. 343-364 (2003).

Sankaran, R. and Im, H. G., “Dynamic Flammability Limits of Methane-Air Premixed Flames with Mixture Composition Fluctuations,” Proceedings of the Combustion Institute, v. 29, pp. 77-84 (2002).

Mason, S. D., Chen, J. H., and Im, H. G., “Effects of Unsteady Scalar Dissipation Rate on Ignition of Nonpremixed Hydrogen/Air Mixtures in Counterflow,” Proceedings of the Combustion Institute, v. 29, pp. 1629-1636 (2002).

 Im, H. G. and Chen, J. H.,  “Preferential Diffusion Effects on the Burning Rate of Interacting Turbulent Premixed Hydrogen-Air Flames,” Combustion and Flame, v. 131, pp. 246-258 (2002).

Im, H. G. and Chen, J. H., “Effects of Flow Strain on Triple Flame Propagation,” Combustion and Flame, v. 126, pp. 1384-1392 (2001).

Im, H. G. and Chen, J. H., “Effects of Flow Transients on the Burning Velocity of Hydrogen-Air Premixed Flames,” Proceedings of the Combustion Institute, v. 28, pp. 1833-1840 (2000).

Chen, J. H. and Im, H. G., “Stretch Effects on the Burning Velocity of Turbulent Premixed Hydrogen-Air Flames,” Proceedings of the Combustion Institute, v. 28, pp. 211-218 (2000).

Im, H. G., Raja, L. L., Kee, R. J., and Petzold, L. R., “A Numerical Study of Transient Ignition in Counterflow Nonpremixed Methane-Air Flame Using Adaptive Time Integration,” Combustion Science and Technology, v. 158, pp. 341-363 (2000) (preprint).

Im, H. G. and Chen, J. H., “Structure and Propagation of Triple Flames in Partially Premixed Hydrogen/Air Mixtures,” Combustion and Flame, v. 119, pp. 436-454 (1999).

Im, H. G., Chen, J. H., and Chen, J.-Y., “Chemical Response of Methane/Air Diffusion Flames to Unsteady Strain Rate,” Combustion and Flame, v. 118, pp. 204-212 (1999).

Im, H. G., Chen, J. H., and Law, C. K., “Ignition of Hydrogen/Air Mixing Layer in Turbulent Flows,” Twenty-Seventh Symposium (International) on Combustion, The Combustion Institute, pp. 1047-1056 (1998).

Im, H. G. and Chen, J. H., “Correlation of Flame Speed with Stretch in Turbulent Premixed Methane/Air Flames,” Twenty-Seventh Symposium (International) on Combustion, The Combustion Institute, pp. 819-826 (1998).

Helenbrook, B. T., Im, H. G., and Law, C. K., “Theory of Radical-Induced Ignition of Counterflowing Hydrogen versus Oxygen at High Temperatures,” Combustion and Flame, v. 112, pp. 242-252 (1998).

Im, H. G.,  Lund, T. S., and Ferziger, J. H., “Large Eddy Simulation of Turbulent Front Propagation with Dynamic Subgrid Models,” Physics of Fluids, v. 9(12), pp. 3826-3833 (1997).

 

Selected Other Publications (Conference Proceedings, Reports)

 

Yoo, C. S., Im, H. G., Wang, Y., and Trouve, A., “Interaction of Turbulence, Chemistry, and Radiation in Strained Nonpremixed Flames,” SciDAC 2005, Jounal of Physics: Conference Series v. 16, 2005, San Francisco, CA, June 26-30 (2005).

Yoo, C. S., Wang, Y., Trouve, A., and Im, H. G., “Characteristic Boundary Conditions for Direct Simulations of Reacting Counterflow,” 4th Joint Meeting of the U.S. Sections of the Combustion Institute, The Combustion Institute, Drexel University, Philadelphia, PA, March 20-23 (2005).

Li, J., Sankaran, R., and Im, H. G., “Extinction Characteristics of Catalyst-Assisted Combustion in a Stagnation-Point Flow Reactor,” 4th Joint Meeting of the U.S. Sections of the Combustion Institute, The Combustion Institute, Drexel University, Philadelphia, PA, March 20-23 (2005).

Sankaran, R., and Im, H. G., “A Theoretical Study on the Effects of Thermal Stratification on the Operating Range of HCCI Engines,” 4th Joint Meeting of the U.S. Sections of the Combustion Institute, The Combustion Institute, Drexel University, Philadelphia, PA, March 20-23 (2005).

Hawkes, E. R., Sankaran, R., Chen, J. H., and Im, H. G., DNS of the Effects of Thermal Stratification and Turbulent Mixing on Constant Volume H2/Air Ignition, and Comparison with the Multi-Zone Model, 4th Joint Meeting of the US Sections of the Combustion Institute, The Combustion Institute, Drexel University, Philadelphia, PA, March 20-23 (2005).

Hong, S., Assanis, D. N., Wooldridge, M. S., Im, H. G., Kurtis, E., and Pitsch, H., Modeling of Diesel Combustion and NO Emissions with a Modified Eddy Dissipation Concept,SAE Paper, 2004-01-0107 (2004).

Sankaran, R. and Im, H. G., “Effects of Mixture Inhomogeneity on the Auto-Ignition of Reactants under HCCI Environment,” 42nd Aerospace Sciences Meeting & Exhibit, Paper No. 2004-1328, Reno, NV, January 5-8 (2004).

Chen, J. H., Hawkes, E. R., Hewson, J. C., Sankaran, R., and Im, H. G., “The Effect of Turbulent Mixing on Compression Ignition of a Lean Hydrogen/Air Premixture,” Fall Meeting of the Western States Section, Paper No. 3F-27, The Combustion Institute, University of California, Los Angeles, CA, October 20-21 (2003).

Yoo, C. S. and Im, H. G., “A Computational Study on the Dynamics of Counterflow Hydrogen-Air Edge Flames,” 3rd Joint Meeting of the U.S. Sections of the Combustion Institute, Paper C02, The Combustion Institute, March 16-19, University of Illinois at Chicago, Chicago, IL (2003).

Sankaran, R. and Im, H. G., “Effects of Hydrogen Addition on the Flammability Limits of Stretched Methane/Air Premixed Flames,” 3rd Joint Meeting of the U.S. Sections of the Combustion Institute, Paper C22, The Combustion Institute, March 16-19, University of Illinois at Chicago, Chicago, IL (2003).