Divergence in Velocity Field -- CFD Online Discussion Forums

May 6, 2009, 08:35	Divergence in Velocity Field	#1
vidyaraja New Member Vidya Raja Join Date: Mar 2009 Posts: 8 Rep Power: 17	Hi, I am trying to run a case with a udf (to include a source term in the Ergun Equation) and the velocity field diverges because the Global Courant Number increased beyond 250. I then switched over to variable time stepping option and decreased the time step size to 1e-8 and it still diverges. Can someone please advice on how to resolve this problem? Thank you. Vidya Raja

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