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Boundary condition for a baffle in the Laplacian mesh motion solver

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Old   May 11, 2020, 22:10
Default Boundary condition for a baffle in the Laplacian mesh motion solver
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Hi all,
I'm using the velocityLaplacian mesh motion solver to move the mesh, it works fine. I want to add a baffle in the domain that moves as if it were an ordinary internal face. The createBaffles utility doesn't automatically modify the pointMotionU file, which means the solver has no boundary condition for the new baffle. A fixed value boundary condition obviously doesn't work because then the mesh is fixed in space. A zero gradient condition sort of works but mesh quality suffers. Is there a way to get the mesh motion solver to consider the baffle as an internal face?

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baffle, boundary condition, dynamic mesh, moving mesh, velocitylaplacian

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