Hello! How can I write the weak form of the two following coupled-equations in FEniCS? \partial u / \partial t = b \nabla \cdot \vec{v} \partial \vec{v} / \partial t = a \nabla u They represent the scalar wave equation \nabla \cdot (a \nabla u ) = \Large{\frac{1}{b}} \Large{\frac{\partial ^2 u}{…

Weak form of coupled-equations

luc May 27, 2020, 9:38pm 3

@plugged, I have found a meaningful reference towards what I want to do, but now I’m stuck in a further step. I’ve created another question with more details, maybe you can help me with this. Thanks!

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Weak form of coupled-equations

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