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Model consistency in large eddy simulation of turbulent channel flowsCombinations 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.
Document ID
19880059092
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Piomelli, Ugo
(Stanford Univ. CA, United States)
Ferziger, Joel H.
(Stanford University CA, United States)
Moin, Parviz
(NASA Ames Research Center Moffett Field; Stanford University, CA, United States)
Date Acquired
August 13, 2013
Publication Date
July 1, 1988
Publication Information
Publication: Physics of Fluids
Volume: 31
ISSN: 0031-9171
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
88A46319
Distribution Limits
Public
Copyright
Other

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