hello
I need to solve a set of the nondimensional equation in comsol (PDE module). for this reason, I need to change the gradient operator(in z-direction I need to add coefficient).how can I do this?
thanks.
Not in any case of a continuous medium!
Thank you very much, Dr. Oleg Troshkin
I think I should probably use the c matrix(Which is attached in the file below)
write the z coefficient of gradient operator in the c matrix.
Galerkin method.
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