Vibrational Relaxation in Gas-Particle Nozzle Flows: A Study of the Effect of Particles

Thulasiram, RK and Reddy, NM (1993) Vibrational Relaxation in Gas-Particle Nozzle Flows: A Study of the Effect of Particles. In: Journal of Thermophysics and Heat Transfer, 7 (4). pp. 747-749.

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Abstract

Nonequilibrium nozzle flows of pure gases is common in many aerospace applications such as rocket nozzles, and hypersonic simulation facilities such as wind-tunnel/shock-tunnel nozzles. The basic problems, including the problem of obtaining numerical solutions for nozzle flows with vibrational energy relaxation, have been studied by several authors. With the advent of metallized propellants for solid rocket motors, the nozzle flow consists not only of pure gases. The metallized propellant burnt in the combustion chamber becomes metal oxide particles and are dragged out of the combustion chamber by the nozzle expansion process of the gas. Arc-heated test gas in hypersonic wind tunnels also contains large numbers of particles flowing with the gas. It is a known fact from earlier studies that the presence of particles in the flow can modify the flow expansion process. The effects of such particles on the internal energy nonequilibrium phenomena during the nozzle expansion process is studied in this investigation.

Item Type:	Journal Article
Publication:	Journal of Thermophysics and Heat Transfer
Publisher:	American Institute of Aeronautics and Astronautics
Additional Information:	Copyright of this article belongs to American Institute of Aeronautics and Astronautics.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	09 Jul 2008
Last Modified:	19 Sep 2010 04:47
URI:	http://eprints.iisc.ac.in/id/eprint/14859

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