### Summary
This paper is an introduction to the Navier-Stokes equations and the methods proposed by the graphics community (up through Stam's Stable Fluids paper) for solving them.
### Problem
This reading gives an introduction to the concepts used in the particle level set method and a few of the difficulties of implemtentation.
### Methods Used
This paper gives a method for using a simultaneous particle simulation to correct numerical inaccuracies in a level set simulation when both are advected by the same velocity field
### Key Ideas
* Basic level set equations
* Correcting level sets with randomly scattered particles near the interface