Mixing Fluids and Granular Materials
Toon Lenaerts | Philip Dutré |
Contact: Toon Lenaerts
Computer Graphics Forum 28, 2 (Proceedings of Eurographics 2009), p. 213-218
Munich, Germany. March 30 - April 3, 2009
Abstract
Fluid animations in computer graphics show interactions with various kinds of objects. However, fluid flowing through a granular material such as sand is still not possible within current frameworks. In this paper, we present the simulation of fine granular materials interacting with fluids. We propose a unified Smoothed Particle Hydrodynamics framework for the simulation of both fluid and granular material. The granular volume is simulated as a continuous material sampled by particles. By incorporating previous work on porous flow in this simulation framework we are able to fully couple fluid and sand. Fluid can now percolate between sand grains and influence the physical properties of the sand volume. Our method demonstrates various new effects such as dry soil transforming into mud pools by rain or rigid sand structures being eroded by waves.
Keywords: sand, fluid, smoothed particle hydrodynamics, particles
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