Animating gases with hybrid meshes

ABSTRACT

This paper presents a method for animating gases on unstructured tetrahedral meshes to efficiently model the interaction of fluids with irregularly shaped obstacles. Because our discretization scheme parallels that of the standard staggered grid mesh. we are able to combine tetrahedral cells with regular hexahedral cells in a single mesh. This hybrid mesh offers both accuracy near obstacles and efficiency in open regions.

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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