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distinguishes between small and large vortices

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Old   April 22, 2016, 03:57
Default distinguishes between small and large vortices
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hssn
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hi
How large eddy simulation distinguishes between small and large eddy ? and How is diagnosed in formula؟
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Old   April 22, 2016, 04:11
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This is useful in answering your question.


http://www.eng.utah.edu/~rstoll/LES/.../Lecture04.pdf
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Old   April 22, 2016, 08:16
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Originally Posted by hssnjfry View Post
hi
How large eddy simulation distinguishes between small and large eddy ? and How is diagnosed in formula؟

the distinction is not within the LES formulation but it is implied by the choice of the computational grids that set the cut-off wavelength. All vortical structure below such scales are not solved and must be modelled.
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Old   April 23, 2016, 01:42
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Originally Posted by FMDenaro View Post
the distinction is not within the LES formulation but it is implied by the choice of the computational grids that set the cut-off wavelength. All vortical structure below such scales are not solved and must be modelled.
thanks for answer
do you know how set this parameter (cut-off wavelength) in OpenFOAm?
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