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research article
Robust 3D Dynamic Triangulations for Collision Detection in DEM Simulations of Granular Materials
Computer simulations of granular materials based on the distinct element method (DEM) are now commonly used in the design and optimization of industrial processes. One of the leading mathematical approach to DEM uses dynamic triangulations for detecting collisions among moving spheres, and relies on advanced data structures and on the exact numerical evaluation of computational geometry predicates. This paper outlines the simulation method and introduces the robust and adaptive computation of predicates using standard floating point operations. Finally, some application examples are shown.
Type
research article
Publication date
2002
Published in
Volume
13
Start page
41
End page
48
Note
PRO 2002.06
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
February 13, 2006
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