hello all, I have a question about finite element method. What boundary condition should be considered for a point that is common in two face? (red point in attached file) if two face have symmetry condition. (one that dT/dx=0 and another dT/dy=0)
Thank you
Filippo Maria Denaro
The corner point is always singular. In some schemes it never enters in the computation in other it does.
There several techniques to work on the corner point, a way could be to assume the generic normal derivative
dT/dn=nx*dT/dx+ny*dT/dy=0
where you assume there is a regular boundary curve in the corner.
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