Free-Flowing Granular Materials
with Two-Way Solid Coupling

Rahul Narain     Abhinav Golas     Ming Lin
University of North Carolina at Chapel Hill

SIGGRAPH Asia 2010


We present a novel continuum-based model that enables efficient simulation of granular materials. Our approach fully solves the internal pressure and frictional stresses in a granular material, thereby allows visually noticeable behaviors of granular materials to be reproduced, including freely dispersing splashes without cohesion, and a global coupling between friction and pressure. The full treatment of internal forces in the material also enables two-way interaction with solid bodies. Our method achieves these results at only a very small fraction of computational costs of the comparable particle-based models for granular flows.

Rahul Narain, Abhinav Golas, and Ming C. Lin, 2010. Free-Flowing Granular Materials with Two-Way Solid Coupling. In ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia), vol. 29, no. 6, pp. 173:1–173:10.

Preprint (PDF, 10.0 MB), Supplementary document (PDF, 90 KB)

Video (QuickTime, 137 MB)

Source Code (gzip/tar, 43.8 MB)