Boundary conditions in the middle of a volume

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Captain Slow
Posts: 72
Joined: 10 Nov 2009, 19:17

Boundary conditions in the middle of a volume

Post by Captain Slow » 06 Jan 2010, 13:28

Hi all,

I am trying to fix the pressure across a plane within the volume that is used for simulation with the Navier-Stokes equation. I have tried drawing the plane within gmsh and creating the mesh. This file is attached, the plane where i wish to fix the pressure is where the narrow tube widens. However, Elmer does not seem to recognise this plane, hence I cannot apply the constant pressure on in.

Is it possible to apply a boundary condition here? Am I attempting to do this in the correct way?

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