Oscillation in the solution -- CFD Online Discussion Forums

December 6, 2002, 05:45	Oscillation in the solution	#1
Mark Render Guest Posts: n/a	Hi I'm calculating some kind of mixer flow in 2 variants. 1. 1/4 model with cyclic BC and rotating coordinate sys 2. full model with sliding mesh In both cases give roughly the same moment around the axis of rotation. In both cases if I monitor the moment over timestep or iteration the moment oscillates with very timestep or iteration chaoticly around a mean value. Has someone ideas what could cause this behaviour ? Regards, Mark

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