Boundary Condition Heat Exchanger counter-corrent -- CFD Online Discussion Forums

March 10, 2012, 13:14	Boundary Condition Heat Exchanger counter-corrent	#1
mb89 New Member Marco Join Date: Mar 2012 Posts: 1 Rep Power: 0	Hi, I'm studying this Heat Exchanger: I've used these boundary conditions, with ideal-gas model: 2 mass flow inlet (for the inlet of the two gases) and two pressure outlet, fixing for all of them pressure and temperature. When I try to iterate I've this problem: "Error: divergence detected in AMG solver: temperature" I don't know what is the problem because if I use Incompressible ideal gas or Costant Density I have a solution. But With normail Ideal Gas Model I've that error. Can someone help me? Thanks! Last edited by mb89; March 10, 2012 at 16:43.

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