Hi guys, I’m using FEniCS 2019.1.0 to test the convergence of finite element methods for problems with singular data. Specifically, I’m looking at the Poisson equation with a delta source - \nabla^2u = \delta(x). Using a mollified delta, I’m able to achieve convergence to the analytical solution u…

PointSource Method Malfunctioning

francesco-ballarin April 28, 2024, 5:25am 2

Seems to me a duplicate of Non-Convergence When Using 'PointSource' Method, hence I am closing. If I am wrong, please get in touch with me.

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