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-   -   help for different between les model (subgrid-scale model) (http://www.cfd-online.com/Forums/fluent/68816-help-different-between-les-model-subgrid-scale-model.html)

liuyuxuan October 2, 2009 09:37

help for different between les model (subgrid-scale model)
 
as we know that there are 4 kinds of subgrid-scale model :
Smagorinsky-Lilly Model
Dynamic Smagorinsky-Lilly Model
Wall-Adapting Local Eddy-Viscosity (WALE) Model
Dynamic Kinetic Energy Subgrid-Scale Model

I have a problem to choose which one exact for our model.

so I really want to know the different bewteen this 4 models, especially for the low Reynolds flow.

Thank you in advance.

ivanbuz October 2, 2009 15:25

in my compuation with Re=6e4, Dynamic Smagorinsky-Lilly Model Wall-Adapting Local Eddy-Viscosity (WALE) Model Dynamic Kinetic Energy Subgrid-Scale Model do NOT make much difference. just do NOT use Smagorinsky-Lilly Model


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