Compound Wall Treatment for RANS Computation of Complex Turbulent Flows and Heat Transfer
By Mirza Popovac, Kemal Hanjalic. 2007
276 citations recorded by the source corpus.
We present a generalised treatment of the wall boundary conditions for RANS computation of turbulent flows and heat transfer. The method blends the integration up to the wall (ItW) with the generalised wall functions (GWF) that include non-equilibrium effects. Wall boundary condition can thus be defined irrespective of whether the wall-nearest grid point lies within the viscous sublayer, in the buffer zone, or in the fully turbulent region. The computations with fine and coarse meshes of a steady and pulsating flow in a plane channel, in flow behind a backward-facing step and in a round impinging jet using the proposed compound wall treatment (CWT) are all in satisfactory agreement with the available experiments and DNS data. The method is recommended for computations of industrial flows in complex domains where it is difficult to generate a computational grid that will satisfy a priori either the ItW or WF prerequisites.
Subfields: Aerospace Engineering, Computational Mechanics, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/f3e243f7b67c6495d908d3bfce17cfae3a660a33
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In Aerospace Engineering
In Computational Mechanics
In Mechanical Engineering
Citations in the corpus
- Review of the shear-stress transport turbulence model experience from an industrial perspective (2009, background): “It is therefore not possible to judge the quality of formulations entirely on theoretical arguments (Popovac and Hanjalic 2007).”