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Effect of side confining walls on the growth rate of compressible mixing layers

Javed, Afroz and Rajan, NKS and Chakraborty, Debasis (2013) Effect of side confining walls on the growth rate of compressible mixing layers. In: COMPUTERS & FLUIDS, 86 . pp. 500-509.

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Official URL: http://dx.doi.org/10.1016/j.compfluid.2013.07.025

Abstract

Model free simulations are performed to study the effect of the presence of side wall in compressible mixing of two parallel dissimilar gaseous streams with significant temperature difference. The turbulence statistics shows the three dimensional nature of the flow with and without the presence of side walls. The presence of side wall neither makes the flow field two dimensional, nor suppresses three dimensional disturbances. However, the comparison of shear layer growth rate and wall pressures reveal a better match with the two dimensional simulation results. This better match is explained on the basis of formation of oblique structures due to the presence of side walls which also suppress the distribution of momentum in third direction making the pressures to be higher as compared with the case without side walls. (C) 2013 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
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Additional Information: copyright for this article belongs to ELSEVIER SCIENCE
Keywords: Compressible mixing layer; Model free simulation; Side wall confinement
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 22 Nov 2013 11:23
Last Modified: 22 Nov 2013 11:26
URI: http://eprints.iisc.ernet.in/id/eprint/47778

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