Comments (6)
I am also interested in this problem. The grid system adopts the cutcell method. It is possible to adopt complex grid system. For example, the gmsh grid type?
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Hi - currently, we do not support loading a CAD model directly into JAX-Fluids. However, if you have an STL file of your geometry you can convert it into a level-set field (i.e., signed distance function). There are some open source tools available for that. You can then load the level-set field as an h5 file into JAX-Fluids. Let us know if you have troubles with that.
As for meshes: JAX-Fluids currently supports uniform and stretched Cartesian grids. We are finalising JAX-Fluids 2.0 which will make grid stretching more intuitive. JAX-Fluids 3.0 will include AMR.
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Hello @dbezgin, I am very interested in the potential for AMR in JAX. Do you any details you can share on this? I have been thinking about this problem for some time but don't have any great ideas for making it work. It is very exciting to see JAX's multi-GPU support though. I am hopeful that a general purpose AMR framework similar to AMRX might be possible to build, (https://amrex-codes.github.io/amrex/). This would have a lot of potential both in the Physics and ML world if you managed to make it scalable and preserve the differentiablility. For a bit I was looking at Taichi to see if something like this was possible there and wrote a small FV solver to try and test out ideas https://www.youtube.com/watch?v=xcZcHbvMe-g. Still thinking about this problem but I am not sure now if Taichi is the right framework to implement AMR in now...
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Is the case (Space shuttle at Mach 2 - Immersed solid boundary method via level-set) in the repo? I can not find it.
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