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Boundary layer meshing for LES

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Old   September 4, 2023, 12:36
Default Boundary layer meshing for LES
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Patricia
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Hello, I am new to LES turbulence modelling. I use STARCCM+. I read on the forum that for LES y+ should be smaller than 1 to capture scales in viscous sublayer. However, while using wall functions, the y+ value can be larger. I use all y+ treatments and try to obtain values around 1. I could not find any information about the meshing boundary layer while using wall functions for LES. Should I use a prism layer to obtain y+ ~1 or just refine the mesh near the wall with even cells as I understood from this research https://iopscience.iop.org/article/1...3/1/012212/pdf
Thank you very much in advance
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