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2.7. Spherically symmetric PDE
This example illustrates how to solve a PDE in a spherically symmetric geometry.

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from pde import DiffusionPDE, ScalarField, SphericalSymGrid
grid = SphericalSymGrid(radius=[1, 5], shape=128) # generate grid
state = ScalarField.random_uniform(grid) # generate initial condition
eq = DiffusionPDE(0.1) # define the PDE
result = eq.solve(state, t_range=0.1, dt=0.001)
result.plot(kind="image")
Total running time of the script: (0 minutes 2.752 seconds)