Notes re: CFD, Navier Stokes,
"Deep Learning Poised to ‘Blow Up’ Famed Fluid Equations"
https://news.ycombinator.com/item?id=31049608
https://github.com/chennachaos/awesome-FEM4CFD?tab=readme-ov...
>> Numerical methods in fluid mechanics:
https://en.wikipedia.org/wiki/Numerical_methods_in_fluid_mec...
jax-cfd mentions phiflow
jax-cfd > Other awesome projects:
https://github.com/google/jax-cfd#other-awesome-projects
PhiFlow:
https://github.com/tum-pbs/PhiFlow/
We had a monochrome green aerodynamic simulation app literally on floppy disks in middle school in approximately 1999 that was still cool then. IIRC various keyboard keys adjusted various parameters of the 2d hull that was tested to eventually - after floppy disc noises - yield a drag coefficient.
TIL that the teardrop shape maximizes volume and minimizes drag coefficient, but some spoiler wings do generate downward lift to maintain traction at speed.
A competitive game with scores and a leaderboard might be effective.
...
Navier-Stokes for compressible and incompressible fluids, but it's a field of vortices with curl so SQG/SQR Superfluid Quantum Gravity / Relativity has Gross-Pitaevskii for modeling emergent dynamics like fluidic attractor systems in exotic states like superfluids and superconductors and supervacuum.
TIL the mpemba effect says that the phase diagram for water is incomplete because one needs the initial water temperature to predict the time to freeze or boil; those have to be manifold charts like HVAC.
There's a Gross-Pitaevskii model of the solar system; gravity results in n-body fluidic vortices which result in and from the motions of the planets and other local masses.
/?hnlog "CFD" :
From "FFT-based ocean-wave rendering, implemented in Godot" https://news.ycombinator.com/item?id=41683990 :
> Can this model a fluid vortex between 2-liter bottles with a 3d-printable plastic connector?
> Curl, nonlinearity, Bernoulli, Navier-Stokes, and Gross-Pitaevskii are known tools for CFD computational fluid dynamics with Compressible and Incompressible fluids.
> "Ocean waves grow way beyond known limits" (2024-09) https://news.ycombinator.com/item?id=41631177#41631975
Also, recently I learned that longitudinal waves in superfluids (and plasmas) are typically faster than transverse standing waves that we observe in fluid at Earth pressures.