Contribution to single-point closure Reynolds-stress modelling of inhomogeneous flow
Gerolymos, G.A., Sauret, Emilie, & Vallet, I. (2004) Contribution to single-point closure Reynolds-stress modelling of inhomogeneous flow. Theoretical and Computational Fluid Dynamics, 17(5-6), pp. 407-431.
This paper is concerned with recent advances in the development of near wall-normal-free Reynolds-stress models, whose single point closure formulation, based on the inhomogeneity direction concept, is completely independent of the distance from the wall, and of the normal to the wall direction. In the present approach the direction of the inhomogeneity unit vector is decoupled from the coefficient functions of the inhomogeneous terms. A study of the relative influence of the particular closures used for the rapid redistribution terms and for the turbulent diffusion is undertaken, through comparison with measurements, and with a baseline Reynolds-stress model (RSM) using geometric wall normals. It is shown that wall-normal-free rsms can be reformulated as a projection on a tensorial basis that includes the inhomogeneity direction unit vector, suggesting that the theory of the redistribution tensor closure should be revised by taking into account inhomogeneity effects in the tensorial integrity basis used for its representation.
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|Item Type:||Journal Article|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Copyright Owner:||Copyright 2004 Springer Verlag|
|Deposited On:||10 Jan 2013 05:24|
|Last Modified:||14 Jan 2013 05:21|
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