Hey Everyone,

I'm new to Houdini, and I'm trying to simulate beer pouring into a pint glass with foam developing and rising to the top of the glass. I'm able to fill the glass with fluid and create the foam group, but I can't seem to find a way to get the foam particles to rise to the top of the fluid surface. Any ideas? None of my VEXpressions are doing what I want. Btw I am using houdini 20.5. Attaching my hip file.