I'm getting too high velocities in simple 2D geometry -- CFD Online Discussion Forums

June 17, 2015, 16:43	I'm getting too high velocities in simple 2D geometry	#1
logme New Member Join Date: Dec 2014 Posts: 4 Rep Power: 11	I'm simulating co2 through a nozzle, using a 2d axysimmetric model like this: The problem is that the velocity gives very high values in the inlet (around 1200m/s). The inlet is pressure inlet, gauge pressure 14 bar and initial/supersonic 13.9bar. The model is transport of species co2+air, k-epsilon realizable. Does anyone know what am i doing wrong or how to solve this?

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