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Re: Drag Force (Coefficient)


One more question. Are there any criterias for best space and time resolutions?rnrnI know that one can use CharU and LatticeU to compute the time step size in SI units (seconds) as:rn

physTime = latticeU/charU * latticeL

( suppose that it’s possible to choose appropriate latticeU and latticeL values to get good time step. But what value time step has to be equal to in concrete physical conditions (Re, Rho, charU)?rn