Liquid phase accumulating on atmosphere boundary
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Hello,
I have a 3D domain initially filled with air. Based on the figure below, water is injected with a certain velocity from top left to the domain and moves through the domain. I am using interFoam. The figure shows iso-surface of alpha.water = 0.5. The boundary specified is atmosphere. The water is being accumulated after hitting that boundary. https://www.cfd-online.com/Forums/at...1&d=1700229561 My question is, what kind of boundary condition for p_rgh, U, and alpha.water should I use, so that the water leaves the domain instead of being accumulated after hitting the atmosphere boundary. Currently, these BCs are as follows: U: inlet { type flowRateInletVelocity; volumetricFlowRate constant 7.22E-06; } atm { type inletOutlet; inletValue uniform 0; value uniform 0; } _______________________________________ p_rgh: inlet { type fixedFluxPressure; value uniform 0; } atm { type totalPressure; p0 uniform 0; } _______________________________________ alpha.water: inlet { type fixedValue; value uniform 1; } atm { type inletOutlet; inletValue uniform 0; value uniform 0; } _______________________________________ Thank you. |
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Answer to my question: On the specified boundary,
U: type inletOutlet; inletValue $internalField; value $internalField; p: type fixedFluxPressure; value uniform 0; alpha.water: type zeroGradient; I would like to thank you all for sharing your thoughts on this!! |
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