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September 13, 2022, 06:03 |
interFoam BC for open water
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#1 |
Member
Eric Segalerba
Join Date: Dec 2021
Location: Italy
Posts: 31
Rep Power: 4 |
Hello everyone!
I'm trying to simulate the flow exiting a pipe placed around 3 meters under the sea level. The case is 2D but I'm having some problems with the boundary conditions for the "sea". So far I set: U inlet -> flowRateInletVelocity outlet -> inletOutletVelocity p inlet -> fixedFluxPressure outlet -> zeroGradient alpha inlet -> fixedValue ... value 1 outlet -> variableHeightFlowRate With those B.Cs the simulation diverges and I can't figure out what to change to make it works... Do you have any guess or tip? Thank you in advance |
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September 13, 2022, 20:04 |
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#2 |
Senior Member
Joachim Herb
Join Date: Sep 2010
Posts: 650
Rep Power: 22 |
You do not specify the pressure with your boundary conditions. Somewhere you need some kind of fixedValue boundary condition for p (or actually for p_rgh).
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September 14, 2022, 06:41 |
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#3 |
Member
Eric Segalerba
Join Date: Dec 2021
Location: Italy
Posts: 31
Rep Power: 4 |
Hi and thank you for your quick answer! Actually after some tests I was able to make it work by splitting the outlet patch in two and imposing flowRateOutletVelocity in the water patch!
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Tags |
boundaries condition, interfoam, sea |
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