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November 25, 2022, 06:50 |
Accumulation of gas at channel outlet
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#1 |
New Member
HR
Join Date: Nov 2022
Posts: 17
Rep Power: 3 |
Hello everyone,
I am running a simulation of a narrow channel consisting of a fluid that is a mixture of gas and liquid. I am using the interFOAM solver for this. At the end of 1s of simulation I am observing a weird accumulation of gas at the outlet. I have attached the image of the issue and the mesh. I feel this accumulation is not physical and is causing disruption of the flow upstream. I have also attached the boundary conditions at the outlet for U, p_rgh and alpha.water here. Outlet U : type inletOutlet; inletValue uniform (0 0 0); p_rgh: type totalPressure; p0 uniform 0; alpha.water: type zeroGradient; I am trying to get a venting to atmosphere condition here. I also tried a zero gradient outlet condition but it too resulted in the same. |
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