LES Filtering -- CFD Online Discussion Forums

September 12, 2008, 12:12	LES Filtering	#1
SONAM Guest Posts: n/a	Hi There, I think you can help me here to understand filtering operation for LES. There are some well known filter functions such as box, Gaussian, spectral, available in the literature to filter the NS/transport equation, in order to obtain the filtered version of the NS equation that would be solved. My question is that, how does one know which filter function is used for filtering as the filtered NS equation remains always same? Even I could not see anything in the SGS part which says this one comes from this filter function. Could you please help me here. Thanks SONAM

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