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Energy Efficiency: Tranverse Jet Instabilities & Control

Advanced Propulsion: Detonations, ionized gases, and turbulent combustion

Alternative Fuels: Acoustically Coupled Droplet Combustion

Rocket Propulsion: Transcritical Coaxial Jet Instabilities

Past


Hypersonic Flight Testing: Phoenix Testbed

Aerospace Safety: Hydrogen Leak Detection

Combustion Generated Air Pollutants: Lobed Fuel Injector

Hazardous waste Incineration: Resonant Dump Combustor

Aerospace Propulsion: In-flight Imaging of Transverse Jets

Advanced Propulsion: Detonations, Ionized Gases, and Turbulent Combustion Simulations


Researchers: Prof. Ann Karagozian, Dr. Jean-Luc Cambier (AFRL), Dr. Venke Sankaran (AFRL), Hai Le (grad), Ayaboe Edoh (grad)

Former Researchers: Dr. Lord Cole (grad), Dr. Christopher Zeineh (grad), Timothy Roth (grad), Dr Xing He (grad), Peter Hwang (grad), Dr. Ron Fedkiw (postdoc), Mark Lee (grad)

Research Supported By:

 

AFRL

Air Force Office of Scientific Research

These computational studies examine transient, reactive compressible flow phenomena associated with advanced rocket and airbreathing propulsion systems. These studies, conducted in collaboration with Drs. Jean-Luc Cambier and Venke Sankaran of AFRL, involve the simulation of pulsating detonation phenomena, the influence of magnetohydrodynamic (MHD) forces on detonations, collisional-radiative kinetics and other non-equilibrium processes in partially ionized plasmas, and kinetic energy-preserving discretization schemes for turbulent reactive flows. In many cases, simulations involving complex kinetics are conducted on our groupís 8-node HP Nvidia M2070 (6 GB) Tesla GPU cluster.

PDE engine

Density contours on an xĖt diagram for a spark ignited H2-air mixture with an initial spark temperature 1500 K, Pspark = 40 atm with 0.5 cm spark length where detonation is Achieved (from Cole, et al., CST, 2012)

Publications:

  1. Complexity Reduction of Collisional-Radiative Kinetics for Atomic Plasma, H. Le, A. R. Karagozian, J.-L. Cambier, accepted for publication in the Physics of Plasmas.


  2. Stability of Flame-Shock Coupling in Detonation Waves: 1D Dynamics, Cole, L. K., Karagozian, A. R., and Cambier, J.-L., Combustion Science and Technology, Vol. 184, Issue 10-11, pp. 1502-1525, 2012.


  3. Magnetohydrodynamic Augmentation of Pulse Detonation Rocket Engines, Zeineh, C. F., Cole, L. K., Roth, T., Karagozian, A. R., and Cambier, J.-L., Journal of Propulsion and Power, Vol. 28, No. 1, pp. 146-159, 2012.

  4. Stability of Flame-Shock Coupling in Detonation Waves: 1D Dynamics, Cole, L. K., Karagozian, A. R., and Cambier, J.-L., Paper 89, 23rd International Colloquium on the Dynamics of Explosions and Reactive Systems (ICDERS), UC Irvine, July 24-29, 2011.

  5. The Pulse Detonation Rocket Induced MHD Ejector (PDRIME) Concept, Cambier, J.-L., Roth, T., Zeineh, C., and Karagozian, A. R., 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Paper AIAA-2008-4688, July, 2008.

  6. Pulse Detonation Engine Simulations with Alternative Geometries and Reaction Kinetics, He, X. and Karagozian, A. R., Journal of Propulsion and Power, Vol. 22, No. 4, pp. 852-861, 2006.

  7. Performance and Noise Characteristics of Pulse Detonation Engines, AIAA Paper AIAA-2004-0469, 42nd AIAA Aerospace Sciences Meeting, January, 2004.

  8. Numerical Simulation of Pulse Detonation Engine Phenomena, He, X. and Karagozian, A. R., Journal of Scientific Computing, Vol. 19, Nos. 1-3, pp.201-224, December, 2003.

  9. Detonation Engine Simulations with Alternative Reaction Kinetics and Geometrical Features, He, X. and Karagozian, A. R., Paper 03F-70, Western States Section/The Combustion Institute Fall Meeting, UCLA, October, 2003.

  10. Numerical Simulation of Pulse Detonation Engine Reactive Flow Processes, He, X. and Karagozian, A.R., Paper No. C-29, 3rd Joint Meeting of the U.S. Section of the Combustion Institute, March, 2003.

  11. Reactive Flow Phenomena in Pulse Detonation Engines, He, X. and Karagozian, A. R., Paper no. AIAA-2003-1171, 41st AIAA Aerospace Sciences Meeting, January, 2003.

  12. Numerical Resolution of Pulsating Detonation Waves, Hwang, P., Fedkiw, R. P., Merriman, B., Aslam, T. D., Karagozian, A. R., and Osher, S. J., Combustion Theory and Modelling, Vol. 4, No. 3, pp. 217-240, September, 2000.

 

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