Dynamics LES
HI all,
I am trying to simulate channel flow using dynamic LES. As there is a 2 step process of Filtering required, in order to calculate the the constant 'Cs', I am not able to figure out how to calulate the same. Using the grid filter, I am able to calculate the Sij(overbar), but when the same is processed through the Test filter, the Sij(overbar) becomes Sij(overbar,tilda)[Sorry for the conventions], how do I go about calculating the later (in terms of coding) and also the Co-efficient on the whole. Is it also fine, if I use a Test filter that is twice the size of the grid filter ? Any takers, thanks in advance, Kilda. |
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