Dear community, I try to solve a transient Poisson equation with Robin BC on an 1x1 UnitSquareMesh domain, which is described by u′=Δu+f u=u_0 at t=0 In order to obtain a discretisization in time the Crank-Nicolson method is employed. Due to the implementation of the Crank-Nicolson method, f…

How to update an UserExpression for the next time step?

dokken October 21, 2020, 3:05pm 2

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