Hello,
I would like to solve a diffision / heat transfer problem where one of the boundary conditions is a PDE:
dc/dt = D d^2c/dx^2
Boundary conditions:
c(x,t)=c0 at x=0 for all t
D dc/dx + (l/h) dc/dt =0 at x=l for all t <-----
How do I implement this boundary condition in COMSOL (mathematics package)?
Best, Tobias