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pressure extrapolation on C(vof, udf)

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Old   October 16, 2003, 23:13
Default pressure extrapolation on C(vof, udf)
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Hi I am trying to solve a open channel flow with air(top) and water(under). I think the pressuroutlet boundary condition is not appropriate to this case. So, I want to extrapolate pressure from the domain or apply the hydrostatic pressure on pressureoutlet boundary. Please give me tips about udf
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