2D Kolmogorov flow

The script for generating 2D Kolmogorov flow:kolmogorov.py is modified from the original script from: https://github.com/neuraloperator/physics_informed/tree/master/solver.

The modification is that we added a drag force term following Kochkov et al. and a slightly more complex forcing term: $8\cos(8y)$ as opposed to $4\cos(4y)$ to generate more complex pattern (i.e. more vorticies).

3D Isotropic turbulence

Installation of SpectralDNS is required to run the script. For the example of bash command, see: run_iso.sh.

3D Smoke

The script for generating 3d buoyancy-driven flow is modified from the 2D script from PDEArena, installation of PhiFlow is required.