This paper addresses one of the most persistent errors in wall-modeled large eddy simulation: the inevitable presence of numerical and subgrid modeling errors in the first few grid points off the wall, which leads to the so-called “log-layer mismatch” with its associated 10-15% error in the predicted skin friction. By considering the behavior of turbulence length scales near a wall, the source of these errors is analyzed, and a method that allows for the log-layer mismatch to be removed, thereby yielding accurately predicted skin friction, is proposed.
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Research Article| January 31 2012
Wall-modeling in large eddy simulation: Length scales, grid resolution, and accuracy
Soshi Kawai, Johan Larsson; Wall-modeling in large eddy simulation: Length scales, grid resolution, and accuracy. Physics of Fluids 1 January 2012; 24 (1): 015105. https://doi.org/10.1063/1.3678331
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