Why no-slip b.c. does not obtain zero-velocity contour? -- CFD Online Discussion Forums

May 15, 2017, 13:14	Why no-slip b.c. does not obtain zero-velocity contour?	#1
random_ran Member Ran Join Date: Aug 2016 Posts: 69 Rep Power: 9	Greeting O.F.er: I have a question regarding with no-slip boundary condition. The simulation case is really simple: flow over a circular cylinder. My confusion is that why velocity contour on the surface of the cylinder is not zero? Is that violate the no-slip b.c? I am using pisoFoam with O.F. v4.1. ParaView is v5.2.0. Can someone elaborate a little bit of it? Thanks, Ran Q1.jpg Q2.jpg kcavatar likes this.

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