It's solving the incompressible form of the Navier-Stokes equations, it's very barebones however - I've left out diffusion for example. It's possible to reduce

It's solving the incompressible form of the Navier-Stokes equations, it's very barebones however - I've left out diffusion for example. It's possible to reduce the grid size and increase the solver iterations to have a more physically accurate simulation, but to go down that route I think there are a lot of algorithmic improvements that should be made