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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