Injection cooling of blunt bodies flying at high Mach numbers

Sreekantha, * and Reddy, NM (1996) Injection cooling of blunt bodies flying at high Mach numbers. In: Journal of Thermophysics and Heat Transfer, 10 (4). pp. 586-592.

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Abstract

A study of transpiration cooling of blunt bodies such as a hemicylinder is made by solving Navier-Stokes equations. An upwind, implicit time-marching code is developed for this purpose. The study is conducted for both perfect-gas and real-gas (chemical equilibrium) flows. Investigations are carried out for a special wall condition that is referred to as no heat flow into the wall condition. The effects of air injection on wall temperature are analyzed. Analyses are carried out for Mach numbers ranging between 6-10 and Reynolds numbers ranging between 10(6)-10(7). Studies are made for spatially constant as well as spatially varying mass injection rate distributions, White cold air injection reduces the wall temperature substantially, transpiration cooling is relatively less effective when the gas is in chemical equilibrium.

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:	29 Apr 2011 06:11
Last Modified:	29 Apr 2011 06:11
URI:	http://eprints.iisc.ac.in/id/eprint/37318

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