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Continuity convergence issue for a multiphase flow in a counterflow heat exchanger |
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April 16, 2012, 06:02 |
Continuity convergence issue for a multiphase flow in a counterflow heat exchanger
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#1 |
Senior Member
Andrea
Join Date: Feb 2012
Location: Leeds, UK
Posts: 179
Rep Power: 16 |
Hello,
I'm performing a transient simulation of a particular kind of counterflow heat exchanger using VOF model; as I'm new to multiphase flow simulation I'm having some convergence troubles. In particular all the scaled residuals are below the standard criteria of Fluent, except continuity, which remains pratically constant (at about 1e03) and doesn't even show the typical spike at the beginning of a new time step. Anyone can help me or has experienced the same problem? Thanks in advance, Andrea |
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July 1, 2013, 11:29 |
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#2 |
Senior Member
FHydro
Join Date: Jan 2013
Posts: 197
Rep Power: 13 |
i have exactly this problem. please help
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July 24, 2013, 05:55 |
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#3 |
Senior Member
OJ
Join Date: Apr 2012
Location: United Kindom
Posts: 473
Rep Power: 20 |
How are you sure you have used adequate timestep/inner loops? Have you tried decreasing the timestep?
OJ |
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