Time step variation with relaxation -- CFD Online Discussion Forums

February 24, 2009, 18:52	Hi, I've been trying to adapt	#1
sean_mcintyre New Member Sean McIntyre Join Date: Mar 2009 Location: State College, PA Posts: 11 Rep Power: 17	Hi, I've been trying to adapt rasInterFoam into a steady solver, using relaxation factors, and calling U.relax(), pd,relax(), etc. I've noticed that even in damBreak, if I set the relaxation factors to any value other than 1, for a given CFL, the time step size observed decreases by orders of magnitude. Is there something within the code (perhaps within runTime or another global-type variable) that scales the time step when relaxation is detected? Thanks, Sean

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