DNS HIT - How to guess nu from a target Re_T? -- CFD Online Discussion Forums

June 9, 2006, 11:42	DNS HIT - How to guess nu from a target Re_T?	#1
turb Guest Posts: n/a	May be that is a stupid question... I am starting to study Homog. Isotr. Turb, and want to do some simulation, for which I must set a viscosity. The reference I want to base my simulations on is the one from Prof. Fureby, for which several taylor-Reynolds numbers (Re_T) are used. The problem with Re_T instead of simply Re, is that now I have to guess what is the value of integral lenght scales, etc..., before even start the simulation. Is that right? So suppose I have a target value for Re_T = 94. How do I find what should be the value of the viscosity? Thanks a lot.

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