Is it suitable to use Weller's scheme in this case?
Hi Foamers,
In order to strictly restrict alpha in [0,0.52], I am now considering to use MULES in case of bubbly flow. I have a question here since in Weller's scheme, there is a compression term (eqn 4.13, Rusche). And it is said "The artificial term is only active in the thin interface region because of the multiplication term gamma(1-gamma)". It is true in case of liquid-vapor with clear interface which only exists somewhere. However in bubbly flow, the interface could be everywhere. I dont know if it is appropriate to use this scheme in my case. Thanks. // Kai |
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Regards. |
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Hi, MULES and interfaceCompression are intended for VOF problems in which surface is completely described and tracked. Maybe you can explain your case a little bit in order to see if it is possible to use these techniques in your case.
Regards. |
It is a two-phase Euler-Euler case. And I think the the way you define the compression term is different between the interface-tracking and dispersed interface (eqn 3.58 and eqn 4.13, Rusche). In my case, there are two velocity fields: Ua and Ub, instead of the single velocity field in the interface-tracking case.
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Just run simple benchmarks to compare with analytic solutions and see what happens. I feel you will be happy with your results.
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