Hi all,
The case I want to simulate includes a porous media baffle, with water on the left side and no water on the right. I want to simulate the process that water on the left flows into the porous media and then flows into the right side.
In my simulatioin, the seepage velocity (from the soil to the fluid domain) at the interface is calculated by solid part. Then, there should be more water at the interface in fluid domain. I’ve managed to couple the seepage velocity at the interface in OF, but how could I add the water due to the seepage according to the velocity at the interface? Could anyone please give me any hints?
Hi Haoran, maybe some mass-flow boundary conditions can help your case?
Cheers, Luofeng
Luofeng Huang
Hi Luofeng, thanks for your hint!
I'm testing the 'flowRateInletVelocity' boundary right now. I'll give feedback after the testing is complete.
Best regards,
Haoran
Hi Luofeng,
I've tested the 'flowRateInletVelocity' boundary. However, it seems to give the velocity on the boundary based on a constant mass or volumetric flow rate instead of giving the volumetric flow according to the velocity of cells at the interface. Is there any possible way to increase additional volumetric flow according to the velocity on the boundary?
(I guess it is similar to the process of making waves since there is more water due to the velocity on the wave generation boundary. However, I don't know the specific practice, could you please share some of your experience if you don't mind.)
Best,
Haoran
I refer you to two discussions which bear on the two problems of Eulerian two-fluid models closures: Turbulence and momentum interfacial transfer:
(6) Turbulence Closure for Two-Fluid RANS Modeling (researchgate.net)
(6) Interfacial Transfer Closure for Two-Fluid RANS Modeling (researchgate.net)
Look forward to exchanges on these topics
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