Hi All

I am working on 2D air/water system with VOF model. I am calculating the bubble velocity by pointing surface and then dividing with time, surely this is not the exact terminal velocity.

My case works on buoyancy forces (No inlet to the system). If there is any UDF or any tutorial guide me so that i can calculate both the bubble center(wrt to co-ordinates) and the shape of bubble.

thanks in Advance