U-RANS in FLUENT -- CFD Online Discussion Forums

April 7, 2009, 18:56	U-RANS in FLUENT	#1
shervin New Member shervin Join Date: Apr 2009 Posts: 1 Rep Power: 0	Hi, I working on unsteady compressible jet flows using U-RANS in FLUENT. My problem is that I can not resolve the unsteady behavior in a flow which based on many papers and another solver that we have is definitely unsteady. I have played around quite a lot with the grid, solver accuracy and multigrid coefficients. I wonder if anyone has tries to use U-RANS in FLUENT and have experienced the same difficulties? I am really confused since I do not know whether I am making some mistake or it is FLUENT that is too damping for unsteady jet kind of problem.

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