Fix on wall distance calculation from symmetry plane of mesh deformation #1200
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Proposed Changes
In the calculation of the stiffness for the mesh deformation, if the symmetry plane for the deformation is too stiff, cells may get distorted and the simulation may crash.
This occurred when the wall distance stiffness was used, and the symmetry plane for the deformation was also a solid wall boundary. This small fix should avoid the issue.
PR Checklist