Hi everyone, I’m pretty new to fenics. I’ve been using fenics for 1d heat diffusion from one material into another. However, I also want the entire mesh to shrink in size with time, but I have no idea how to approach this problem. I’m not getting any errors because I don’t even know where to start …

Thank you! Is ALE.move something I can implement independent of my heat equation? Or do I have to incorporate a new displacement term in my variational form?

The most mathematically correct thing would be to incorporate u in your variational form

I’ve been working on this problem a bit, but I still can’t quite grasp how I can incorporate the displacement into my variational form

Heat diffusion with a mesh that changes size

mesh

dokken June 24, 2022, 2:48pm 2

You can use ALE.move, see; How to translate a 2D mesh by a vector? - #2 by kamensky

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Heat diffusion with a mesh that changes size

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