Abonnement à la biblothèque: Guest
Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

GENERATION OF TURBULENT INLET-BOUNDARY CONDITIONS USING POD-MODES

pages 829-834
DOI: 10.1615/TSFP3.1400
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RÉSUMÉ

A very large-eddy simulation based on a small set, S, of POD-modes of turbulent channel flow is performed in order to generate turbulent inlet-boundary conditions for a DNS of the same flow. On to the large-scale motion small-scale random POD-modes, not included in the set S, are added in order to impose some energy in the high wave-number part of the spectrum. It is found that the normal Reynolds stresses and the energy spectra attain the same level as in fully developed channel flow approximately 5 channel heights downstream the inlet.

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