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Boundary Condition Heat Exchanger counter-corrent

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Old   March 10, 2012, 13:14
Default Boundary Condition Heat Exchanger counter-corrent
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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?


Last edited by mb89; March 10, 2012 at 16:43.
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