[Gfs-devel] Gerris NS solver in a restricted domain

[Vladimir Kolobov]

Dear Gerris developers,

We have a question of how to solve the gerris NS solver in a restricted
domain.

If we have a VOF variable which defines a solid-gas interface (no
GfsSolid objects in the domain). We want to solve the NS solver only in
the gas phase. If we limit ourselves to the stair-step approximation (in
which the VOF variable can be a standard variable), we have to set dp/dn
= 0 and U=V=W=0 on the gas-solid interface faces (full cell faces) and
solve the pressure correction and velocity-momentum
(advection+diffusion) only in the gas phase.

Is there a simple solution to do this without going deep into the code ?

Thanks, Vladimir


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