friction velocity -- CFD Online Discussion Forums

April 22, 2003, 09:56	friction velocity	#1
kei-tee Guest Posts: n/a	Hi, everyone. I'm Japanese. I have a simple question on definition of friction velocity. Def of the friction velocity is U_tau = sqrt(tau_wall/rho) & In 2D, tau_wall = mudu/dy So, in 3D? tau_wall = mu(vorticity magnitude) is correct? Best regards. kei-tee

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