LES of turbulent heat transfer in Couette channel flow using dynamic SGS models
by Donald J. Bergstrom, Jing Yin, Bing-Chen Wang
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 6, No. 1/2/3, 2006

Abstract: The present paper documents a Large Eddy Simulation of thermal transport in turbulent Couette flow with a constant wall temperature difference. A local formulation of a dynamic eddy viscosity model is used to model the subgrid-scale stress (SGS), while the SGS heat flux is calculated two ways: using the dynamic eddy viscosity and a constant SGS Prandtl number; and using a second dynamic formulation for the SGS Prandtl number. Both simulations capture important features of the temperature field, although some small differences exist. Implementation of the dynamic SGS Prandtl number in a local formulation required extreme levels of clipping to ensure numerical stability.

Online publication date: Wed, 05-Apr-2006

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