Surface Tension term in two phase flows
I am simulating two phase flow using the level set method (finite volume).
I have some problems in descretizing the surface tension term. Could anyone help me to find a descretized surface tension term? I do not how to descretize it correctly.
Re: Surface Tension term in two phase flows
Compute gradient of volume fraction function to evaluate curvature
k=-grad (n) where n is the normal vector which is then =
n = - (grad C) / abs(grad C) where C is the color VOF function.
This is easily computed within the FV framework.
Then force term in source F = sigma*k
Hope this helps
force term in source would be F = sigma*k*(grad C)
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