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Model consistency in large eddy simulation of turbulent channel flows (1988)

Ferziger, Joel H. ; Piomelli, Ugo ; Moin, Parviz

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Publication Date: 2011-08-19

Description: Combinations of filters and subgrid scale stress models for large eddy simulation of the Navier-Stokes equations are examined by a priori tests and numerical simulations. The structure of the subgrid scales is found to depend strongly on the type of filter used, and consistency between model and filter is essential to ensure accurate results. The implementation of consistent combinations of filter and model gives more accurate turbulence statistics than those obtained in previous investigations in which the models were chosen independently from the filter. Results and limitations of the a priori test are discussed. The effect of grid refinement is also examined.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: Physics of Fluids (ISSN 0031-9171); 31; 1884-189

Format: text

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