Freestream Setup in an External Flow Simulation

phathomie27 · October 20, 2009, 19:38

I have set up an external flow simulation with supersonic freestream conditions. I have a cylinder around the geometry and I declared the top and bottom of the cylinder as the inlet and outlet respectively, and the sides as the freestream atmosphere. The freestream has zero gauge pressure and a Mach number of 2.0. The problem is that the freestream prevents my simulation from converging...instead it performs a limit cycle behavior (oscillates instead of converges). Any idea what I may be missing?

hirchav · January 6, 2017, 08:00

Did you solve your problem?

October 20, 2009, 19:38	Freestream Setup in an External Flow Simulation	#1
phathomie27 New Member Join Date: Oct 2009 Posts: 1 Rep Power: 0	I have set up an external flow simulation with supersonic freestream conditions. I have a cylinder around the geometry and I declared the top and bottom of the cylinder as the inlet and outlet respectively, and the sides as the freestream atmosphere. The freestream has zero gauge pressure and a Mach number of 2.0. The problem is that the freestream prevents my simulation from converging...instead it performs a limit cycle behavior (oscillates instead of converges). Any idea what I may be missing?

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January 6, 2017, 08:00		#2
hirchav New Member hirvin chavezu Join Date: Oct 2016 Posts: 4 Rep Power: 10	Did you solve your problem?