convergence problem in 3D steady state, laminar flow in a bath -- CFD Online Discussion Forums

July 10, 2009, 13:18	convergence problem in 3D steady state, laminar flow in a bath	#1
vajiheh New Member Join Date: May 2009 Posts: 5 Rep Power: 17	Hi, I am having trouble getting my laminar, steady state problem to converge. the geometry is a bath with a strip moving in the bath from top side and rotating around a roller, and then going outside from the other side of the roller. the problem is not converging I have tried SIMPLE,SIMPLECO, COUPLED, with very small relaxation factors ~0.3, and none of them work. the velocity of strip is around 0.5 m/s, and the divergence starts where the roller and strip meet. I have adapted mesh to about 20 times denser in that area, but it does not help. please let me know if you have any idea. Thanks Vadia

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