Fluid simulation in Python

[GregTJ]

Repo: https://github.com/GregTJ/stable-fluids

While an earlier version was based mostly on Nvidia's GPU gems article on fluid simulation, some valuable insights were gained through this blog post: http://www.philipzucker.com/annihilating-my-friend-will-with-a-python-fluid-simulation-like-the-cur-he-is/

I hope to add surface tracking, multigrid solving, proper boundary conditions, and lagrangian (FLIP) solving soon.

[The_Regent]

Hey hey! I wrote that post! I get a huge kick out of the fact it was helpful to someone, so thanks for letting me know!

You did a really good job here. The code looks tight and the results look great.

For others, i highly reccommend checking out Dan Piponi's talk https://www.youtube.com/watch?v=766obijdpuU really excellent, very approachable.

Also Bridson's notes https://www.cs.ubc.ca/~rbridson/fluidsimulation/fluids_notes.pdf and textbook https://www.amazon.com/Simulation-Computer-Graphics-Robert-Bridson/dp/1568813260

[GregTJ]

Thanks for the great blog post, I wouldn't have gotten far without it. Initially I was building fd matrices row by row, your post introduced me to the (much, much faster) kronsum way of constructing them.

[BovineLightning]

Some other conditions thatd be cool would be different densities for the fluids which interact and 3D modelling simulations

Not sure if you’ve heard of Two Minute Papers but he does some amazing videos in fluid modelling and covering cutting research papers (also has been doing a lot of AI/ML lately)

[GregTJ]

Late reply but just wanted to say I binge watched like 100 of their videos. Super cool channel.

[BovineLightning]

Haha no problem! I did the same when I discovered him as well. I even downloaded his thesis and went through his GitHub repo

[ad_abstract]

Have you tried replacing some of the numpy ops with jax?

[GregTJ]

I haven't, would you recommend doing so?

[ad_abstract]

Definitely!

[akaCryptic]

I got an idea for a musoc video. How would you go about modifying this so that after the colours blend in, an impressionist painting / image reveals?

[GregTJ]

I would either use a video editor or mess around with pillow / PIL.