Fluid Animation with Multi-layer Grids

The most popular way to animate fluids is to solve the underlying physical equations. In this poster we introduce a general framework for physically-based fluid animation: the multi-layer Navier-Stokes solver. The Navier-Stokes equations are solved on a series of nesting grids in successive passes. Then the velocity and pressure fields of different layers are synchronized through interpolations. With the multi-layer framework, it is capable of combining the respective advantages of various grid types (discretizations), catching the multi-scale behavior of fluids and optimizing the computational resources.