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Variants of projection‐based finite element variational multiscale methods for the simulation of turbulent flows
Author(s) -
John Volker,
Kindl Adela
Publication year - 2007
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1712
Subject(s) - discretization , turbulence , finite element method , projection (relational algebra) , computation , turbulence modeling , large eddy simulation , flow (mathematics) , mathematics , statistical physics , mechanics , geometry , mathematical analysis , physics , algorithm , thermodynamics
Some variants of a three‐scale projection‐based finite element variational multiscale (VMS) method are studied for turbulent channel flow computations at Re τ =180. Different spaces for the large scales, two eddy viscosity models and two ways of discretizing the projection terms in time are explored. The results obtained with the resolved small scales in the definition of the eddy viscosity are very sensitive to the temporal discretization of the projection terms. The computations were performed on three grids commonly used in turbulent channel flow simulations. Copyright © 2007 John Wiley & Sons, Ltd.