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

Oberlack, Martin ; Peters, Norbert (1993)
Closure of the Two-Point Correlation Equation as a Basis for Reynolds Stress Models.
In: Applied Scientific Research, 51 (1-2)
Artikel, Bibliographie

Kurzbeschreibung (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.

Typ des Eintrags: Artikel
Erschienen: 1993
Autor(en): Oberlack, Martin ; Peters, Norbert
Art des Eintrags: Bibliographie
Titel: Closure of the Two-Point Correlation Equation as a Basis for Reynolds Stress Models
Sprache: Englisch
Publikationsjahr: 1993
Verlag: Springer
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Applied Scientific Research
Jahrgang/Volume einer Zeitschrift: 51
(Heft-)Nummer: 1-2
URL / URN: http://www.springerlink.com/content/n5x23x5w3813176x/
Kurzbeschreibung (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.

Freie Schlagworte: two-point correlation equation; Reynolds-stress models
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy)
16 Fachbereich Maschinenbau
Hinterlegungsdatum: 23 Aug 2011 14:48
Letzte Änderung: 04 Dez 2017 10:49
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