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Volume of Fluid - In circles

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Old   September 28, 2015, 00:28
Default Volume of Fluid - In circles
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Akshay Kumar
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Hey FOAMers!

Has anyone run an industry level problem that involves the VOF approach? I'm trying to simulate one that has high momentum and I have a fine mesh to capture details. I've always had issues with time steps and resolving the interface accurately. The time step requirement drops to orders of 1e-6 and when my overall runtime is high , this can take months to solve.
I've used a lot of options like the implicit approach, playing with correctors, alpha parameters, but somehow it hasn't worked well.
Could anyone help me on this regard? Any interesting methods like a height function along with the VOF approach...or anything at all??

Thanks
Aks
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Old   September 28, 2015, 02:53
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Nima Samkhaniani
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if you are looking for steady-state solution, you may want to use LTSInterFoam which is suitable for VOF steady state problem
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Old   September 28, 2015, 04:12
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Akshay Kumar
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Hey Nima

I'm not looking for a steady state solution. Consider filling a tank with a high flow rate and you got crazy splashing as it fills. This is what I have. Any interesting suggestions as to how to go about it? I'm working on running with slightly higher Co numbers, controlling correctors. And for the alpha equation...sub-cycling is also considered. I'm using vanLeer for alpha conv schemes and interfaceCompression for alpharb (Henry).
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