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Reynolds-stress modelling of transonic afterbody flows

Published online by Cambridge University Press:  04 July 2016

M. A. Leschziner ,
P. Batten  and
T. J. Craft
M. A. Leschziner
Affiliation:
Aeronautics Department Imperial College of Science, Technology and Medicine London, UK
P. Batten
Affiliation:
Metacomp Technologies, USA
T. J. Craft
Affiliation:
Department of Mechanical Engineering UMIST Manchester, UK
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Abstract

Several afterbody flows, involving shock-boundary-layer interaction, are used to evaluate recent developments in a realizable low-Reynolds-number, second-moment closure of turbulence. The model considered is a compressibility-adapted variant of the recent incompressible-flow form of Craft and Launder. This includes a tensorially cubic model for the influential pressure-strain process, ϕij, which satisfies the two-component-turbulence limit at the wall, is directly applicable to low-Reynolds-number flow regions and does not rely on or use surface-topography parameters, such as wall-normal distance or direction. Improved predictions for afterbody flows are demonstrated, relative to existing low-Reynolds-number two-equation models and the most elaborate form of Reynolds-stress closure incorporating a linear approximation for the pressure-strain process.

Type
Research Article
Information
The Aeronautical Journal , Volume 105 , Issue 1048 , June 2001 , pp. 297 - 306
Copyright
Copyright © Royal Aeronautical Society 2001 

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