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December 20, 2011, 08:42
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Open atmosphere B.C. in Fluent
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#1 |
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Member
Soroush
Join Date: Mar 2010
Posts: 52
Rep Power: 16  |
Hi everybody,
I'm trying to simulate a 3D model of oil drop rising in water (Using VOF multiphase scheme). My geometry is a simple tank with upper surface open to atmosphere. What is the best boundary condition for the top surface. I have tried Pressure outlet and I get backflow in some of the faces, is it normal, can it ruin the results? Thanks... |
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December 21, 2011, 13:54
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#2 |
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Senior Member
duri
Join Date: May 2010
Posts: 245
Rep Power: 16 |
If you are not studying the effect on surface, outflow or pressure outlet will work. Otherwise, extend the domain to include some air column and give pressure outlet at the exit.
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