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New approximate boundary conditions for large eddy simulations of wall-bounded flowsTwo new approximate boundary conditions have been applied to the large eddy simulation of channel flow with and without transpiration. These new boundary conditions give more accurate results than those previously in use, and allow significant reduction of the required CPU time over simulations in which no-slip conditions are applied. Mean velocity profiles and turbulence intensities compare well both with experimental data and with the results of resolved simulations. The influence of the approximate boundary conditions remains confined near the point of application and does not affect the turbulence statistics in the core of the flow.
Document ID
19890054538
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Piomelli, Ugo
(Stanford Univ. CA, United States)
Ferziger, Joel
(Stanford Univ. CA, United States)
Moin, Parviz
(Stanford University CA, United States)
Kim, John
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1989
Publication Information
Publication: Physics of Fluids A
Volume: 1
ISSN: 0899-8213
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
89A41909
Funding Number(s)
CONTRACT_GRANT: NCC2-15
Distribution Limits
Public
Copyright
Other

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