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A study of compressibility effects on structure of homogeneous sheared turbulence

Published online by Cambridge University Press:  28 June 2007

M. Riahi ,
L. Chouchane  and
T. Lili
M. Riahi*
Affiliation:
Département de Physique, Laboratoire de Mécanique des Fluides, Faculté des Sciences de Tunis, Campus Universitaire, El Manar II 2092, Tunis, Tunisia
L. Chouchane
Affiliation:
Département de Physique, Laboratoire de Mécanique des Fluides, Faculté des Sciences de Tunis, Campus Universitaire, El Manar II 2092, Tunis, Tunisia
T. Lili
Affiliation:
Département de Physique, Laboratoire de Mécanique des Fluides, Faculté des Sciences de Tunis, Campus Universitaire, El Manar II 2092, Tunis, Tunisia
*
[email protected]
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Abstract

A study of compressibility effects on structure and evolution of a sheared homogeneous turbulent flow is carried out using rapid distortion theory (RDT). The focus of this paper consists in validating RDT code by considering the direct numerical simulation (DNS) and RDT results of Simone [Simone, Coleman and Cambon, Fluid Mech. 330, 307 (1997)]. We will use this theory to clarify the physics of the compressible turbulent flows. An analysis of the behavior of different terms appearing in the turbulent kinetic energy and the Reynolds stress equations permit to well identify compressibility effects which allow us to analyze performance of the compressible model of Fujiwara and Arakawa concerning the pressure-dilatation correlation. The evaluation of this model stays in the field of RDT validity.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 39 , Issue 1 , July 2007 , pp. 67 - 75
Copyright
© EDP Sciences, 2007

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References

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