Unsteady Laminar Flow Around a circular cylinder -- CFD Online Discussion Forums

December 29, 2007, 10:44	Unsteady Laminar Flow Around a circular cylinder	#1
Mehmet Sonmez Guest Posts: n/a	Hi, I am investigating the behaviour of liquid water around a circular cylinder. Reynolds number is 178, and the velocity is 0.0008942m/s. But I couldn't get the velocity contour as it should be. Here is the image of how it should be. http://img186.imagevenue.com/img.php..._122_425lo.JPG And this is what I got(It is definitely wrong) http://img11.imagevenue.com/img.php?..._122_930lo.JPG Can anybody help me? I chose unsteady solver and laminar for viscous. Time Step Size, Number of Step Size, Max Iter. per Time Step, have they any impact on the result?

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