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Closure of the Two-Point Correlation Equation as a Basis for Reynolds Stress Models

Oberlack, Martin and Peters, Norbert (1993):
Closure of the Two-Point Correlation Equation as a Basis for Reynolds Stress Models.
In: Applied Scientific Research, Springer, pp. 533-538, 51, (1-2), ISSN 00036994,
[Online-Edition: http://www.springerlink.com/content/n5x23x5w3813176x/],
[Article]

Abstract

A closure model for the von Kármán-Howarth-Equation is introduced. The model holds for a wide range of well accepted turbulence-theories for homogeneous isotropic turbulence, as there is Kolmogorovs first and second similarity hypothesis and the invariant theory, which is a generalization of Loitsianskiis and Birkhoffs integrals. Experimental verification supports the model in a range of reliable data and numerical calculations produces nearly identical results with the EDQNM theory. Supposing locally isotropic turbulence a moment expansion of the correlation equation brings out the production term in the c_ε_1 from 3/2 emerges from the nonlocal dependence of dissipation.

Item Type: Article
Erschienen: 1993
Creators: Oberlack, Martin and Peters, Norbert
Title: Closure of the Two-Point Correlation Equation as a Basis for Reynolds Stress Models
Language: English
Abstract:

A closure model for the von Kármán-Howarth-Equation is introduced. The model holds for a wide range of well accepted turbulence-theories for homogeneous isotropic turbulence, as there is Kolmogorovs first and second similarity hypothesis and the invariant theory, which is a generalization of Loitsianskiis and Birkhoffs integrals. Experimental verification supports the model in a range of reliable data and numerical calculations produces nearly identical results with the EDQNM theory. Supposing locally isotropic turbulence a moment expansion of the correlation equation brings out the production term in the c_ε_1 from 3/2 emerges from the nonlocal dependence of dissipation.

Journal or Publication Title: Applied Scientific Research
Volume: 51
Number: 1-2
Publisher: Springer
Uncontrolled Keywords: two-point correlation equation; Reynolds-stress models
Divisions: 16 Department of Mechanical Engineering > Fluid Dynamics (fdy)
16 Department of Mechanical Engineering
Date Deposited: 23 Aug 2011 14:48
Official URL: http://www.springerlink.com/content/n5x23x5w3813176x/
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