swak4Foam to calculate bubble velocity
i guess, it should be possible to access a bubble velocity with swak4Foam
but i dont know how the procedure can be?
the procedure should be like that:
1) select all cells with alpha < 0.5
2) calculate the gravity center in each time step
any comment or suggestion?
(with an accumulation sum) might give you the center of the "non-fluid".Have a look at my presentation from the last workshop (you'll find it on the swak4Foam-page on the Wiki). Slide 76 has a similar application.
BTW: if you're interested in the velocity of the liquid interface then you might want to have a look at slide 155 where it s demonstrated how to calculate that with sampledSurfaces
I'm doing a 3D simulation of two and three bubble rising using a modified interFoam solver and I need to bubbles centre position, velocity and surface area.
For a single bubble rising I used swak4Foam expressions for example for bubble centre position in Y as follows :
Thanks in advance,
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