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hssnjfry April 22, 2016 03:57
distinguishes between small and large vortices
 
hi
How large eddy simulation distinguishes between small and large eddy ? and How is diagnosed in formula؟:confused:

davidwilcox April 22, 2016 04:11
This is useful in answering your question.


http://www.eng.utah.edu/~rstoll/LES/.../Lecture04.pdf

FMDenaro April 22, 2016 08:16
Quote:
Originally Posted by hssnjfry (Post 596243)
hi
How large eddy simulation distinguishes between small and large eddy ? and How is diagnosed in formula؟:confused:

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.

hssnjfry April 23, 2016 01:42
Quote:
Originally Posted by FMDenaro (Post 596287)
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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