NIST real gas model can not converge -- CFD Online Discussion Forums

May 6, 2013, 13:30	NIST real gas model can not converge	#1
mayanyun New Member Join Date: May 2013 Posts: 2 Rep Power: 0	I am doing a simulation recently. With heat exchange and flow. If I define the gas material parameters as constant such as density, it can be converged. First I simulate the flow case. Then I do the heat exchange. It is ok. But as the temperature change range is from 40K to 300K. So I change to NIST real gas model. Then it can not converge.

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