Hi, I'm having trouble defining the boundary conditions of my unsteady difussion problem in spherical coordinates using the pdepe function of MATLAB. the boundary conditions are as follows: for r=0 and t>0, dC/dt=0 for r=R and t>0, C=0
Right now Im trying with pl=0, ql=0, pr=0, qr=1 but I just get a flat line. Any help would be greatly appreciated.
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