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)
Article, Bibliographie
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 ; Peters, Norbert |
| Type of entry: | Bibliographie |
| Title: | Closure of the Two-Point Correlation Equation as a Basis for Reynolds Stress Models |
| Language: | English |
| Date: | 1993 |
| Publisher: | Springer |
| Journal or Publication Title: | Applied Scientific Research |
| Volume of the journal: | 51 |
| Issue Number: | 1-2 |
| URL / URN: | http://www.springerlink.com/content/n5x23x5w3813176x/ |
| 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. |
| 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 |
| Last Modified: | 04 Dec 2017 10:49 |
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