Grid generation for DES

ROOZBEH

Dear CFD users;

I want to simulate the flow field including separation around a finite wing using DES turbulence modeling approach. I know that we have to use fine grid both near the body and in far field when we use LES. But we don't have to use a fine grid in far field when we use RANS. My question is that what strategy we shoud implement to generate the numerical grid when we use DES.

with the best regards, ROOZBEH