Author:
WALLIN STEFAN,JOHANSSON ARNE V.
Abstract
Some new developments of explicit algebraic Reynolds stress turbulence models
(EARSM) are presented. The new developments include a new near-wall treatment
ensuring realizability for the individual stress components, a formulation for
compressible flows, and a suggestion for a possible approximation of diffusion terms in
the anisotropy transport equation. Recent developments in this area are assessed and
collected into a model for both incompressible and compressible three-dimensional
wall-bounded turbulent flows. This model represents a solution of the implicit ARSM
equations, where the production to dissipation ratio is obtained as a solution to a
nonlinear algebraic relation. Three-dimensionality is fully accounted for in the mean
flow description of the stress anisotropy. The resulting EARSM has been found to
be well suited to integration to the wall and all individual Reynolds stresses can be
well predicted by introducing wall damping functions derived from the van Driest
damping function. The platform for the model consists of the transport equations for
the kinetic energy and an auxiliary quantity. The proposed model can be used with
any such platform, and examples are shown for two different choices of the auxiliary
quantity.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
593 articles.
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