Partial slip boundary condition?
The vorticity at the edge of the near-wall region is defined,w=du/dy since dv/dx=0 at the wall. w*=Cf*U^2/vt where, w*=the dimensional wall vorticity;
U=maximum velocity in the outer flow region;
(1)I don't know how to understand the outer flow region,how it should be defined? (2)How to obtain the value of friction factor?
Thanks in advance.
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