I want to advect a surface using the fluid velocity using semi
lagrangian advection.The fluid is in a box, that is the fluid is
surrounded by solid walls in 4 directions.
I applied “no slip boundary condition” for fluid and neuman boundary
condition for pressure.But the problem is that my surface is going
through the wall. At the final frame, only the bottom most row contains
part of the surface, other parts got disappeared. I also dont find any
condition in semi lagrangian advection to stop moving the surface. Would
anyone plz suggest?
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