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An immersed boundary/wall modeling method for RANS simulation of compressible turbulent flows
Author(s) -
Pu T. M.,
Zhou C. H.
Publication year - 2018
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.4487
Subject(s) - turbulence , reynolds averaged navier–stokes equations , turbulence modeling , mechanics , law of the wall , compressibility , boundary layer , reynolds stress , large eddy simulation , direct numerical simulation , k epsilon turbulence model , reynolds stress equation model , physics , k omega turbulence model , mathematics , classical mechanics , reynolds number
Mean‐flow variables at the immersed boundary (IB) nodes (ie, interior near‐wall nodes) are evaluated via linear interpolation in the normal direction to close the discrete form of governing equations. To reduce the near‐wall mesh intervals, the tangential velocity at IB nodes is determined by enforcing the wall shear stress modified by the wall modeling technique. Analytical solutions in the near‐wall region are utilized to determine the turbulence variables of SST k ‐ ω or S‐A model at IB nodes.