Show HN: Physically realistic foam on water. Supercomputer simulation [video]

1 pointpkarnakov1 comment

We did a simulation of foam on water [1] using the open-source solver Aphros [2] and visualized using ParaView with the Intel OSPRay backend for path tracing. It took 20 hours on 14000 cores of the Piz Daint supercomputer.

[1] https://www.youtube.com/watch?v=0Cj8pPYNJGY

[2] https://github.com/cselab/aphros

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This simulation is called a "Foaming waterfall". The waterfall captures air bubbles that rise to the surface and create foam. Similar effects are observed in oceans covered with foam generated by breaking waves. Our paper [3] describes the algorithm and contains more applications of this software stack. An online widget [4] shows the algorithm in two dimensions.

[1] https://www.youtube.com/watch?v=0Cj8pPYNJGY

[2] https://github.com/cselab/aphros

[3] https://arxiv.org/abs/2103.01513

[4] https://cselab.github.io/aphros/wasm/hydro.html

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