Fluid animation with dynamic meshes

Abstract

This paper presents a method for animating fluid using unstructured tetrahedral meshes that change at each time step. We show that meshes that conform well to changing boundaries and that focus computation in the visually important parts of the domain can be generated quickly and reliably using existing techniques. We also describe a new approach to two-way coupling of fluid and rigid bodies that, while general, benefits from remeshing. Overall, the method provides a flexible environment for creating complex scenes involving fluid animation.

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Index Terms

• Computing methodologies

  • Computer graphics

    • Animation

      • Physical simulation

    • Shape modeling

  • Modeling and simulation

    • Simulation types and techniques

      • Simulation by animation

• Mathematics of computing

  • Continuous mathematics

    • Topology

      • Geometric topology