pdepe solver for spherical coordinates

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Ishani Prachchhak
Ishani Prachchhak 2023-3-28
编辑： Torsten 2023-3-28
I am using the heat conduction equation for solid which has the source term to enter the code in Matlab. But even changing any values of s the plot is not chnaging atall. What could be the problem?
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Ishani Prachchhak
Ishani Prachchhak 2023-3-28
I am trying to solve for constant conductivity equation using pdepe.
Torsten
Torsten 2023-3-28
编辑：Torsten 2023-3-28
You set up the following problem:
1/alpha * du/dt = d/dx ( 1/x^2 * du/dx) + egen/k
u(t=0) = 296
1/x^2 * du/dx = 0 at x=0
1.234e19 - 2*5.9/x^2 * du/dx = 0 at x = 15e-9.
Is this really what you try to solve ?
If not: please include equation, initial and boundary conditions.

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