reversed flow -- CFD Online Discussion Forums

March 30, 2004, 15:42	reversed flow	#1
Scott Guest Posts: n/a	I am attempting to validate fluent for a scramjet. Currently, I am trying to produce results for a fuel (hydrogen) and air mixing case (no reactions). I am using the coupled explicit unsteady solver (have also used implicit with similar results). My problem is that after roughly 1000 iterations, reversed flow develops. I have tried running the code longer to see if it stabilizes, but it will eventually either reverse through the entire model, or the solution will completely diverge and fluent will stop. Any suggestions? Thanks, Scott

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