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On the return to isotropy of compressible anisotropic turbulence

Crespo, Matthieu and Jamme, Stéphane and Chassaing, Patrick On the return to isotropy of compressible anisotropic turbulence. (2005) In: 35th AIAA Fluid Dynamics Conference and Exhibit, 06-09 June 2005, Toronto, Canada .

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Official URL: http://www.aiaa.org/content.cfm?pageid=406

Abstract

In the present paper, the behaviour of compressible anisotropic turbulence is investigated using Direct Numerical Simulation (DNS). The computational code is based on a finite volume formulation of the explicit predictor-corrector MacCormack scheme. Decay simulations of homogeneous turbulence are carried out through specifying a constant mean flow and adding an initial anisotropic fluctuating velocity field. A specific parameterization of anisotropy allows us to explore several anisotropic decay situations. The impact of the nature of the initial anisotropic turbulence on turbulent kinetic energy decay is underlined. A specific decomposition of the turbulent kinetic energy budget permits to study the return to-isotropy phenomenon.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By:Stéphane Jamme

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