Extracting Surface Geometry from Particle-Based Fracture Simulations

Watcharopas, Chakrit; Sapra, Yash; Geist, Robert; Levine, Joshua A.

doi:10.1007/978-3-319-27857-5_8

Cited by 1 publication

(1 citation statement)

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“…We use α = 1, β = 0, and n min = 8, n max = 64 in all simulations, unless otherwise specified. The rendered surfaces are generated using levelsets [80] for fluid particles and tetrahedralization of the solid mesh in the beginning of the simulation [81] for solid particles.…”

Section: Resultsmentioning

confidence: 99%

Particle Merging-and-Splitting

Truong

Yuksel

Watcharopas

et al. 2022

IEEE Trans. Visual. Comput. Graphics

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Robustly handling collisions between individual particles in a large particle-based simulation has been a challenging problem. We introduce particle merging-and-splitting, a simple scheme for robustly handling collisions between particles that prevents inter-penetrations of separate objects without introducing numerical instabilities. This scheme merges colliding particles at the beginning of the time-step and then splits them at the end of the time-step. Thus, collisions last for the duration of a time-step, allowing neighboring particles of the colliding particles to influence each other. We show that our merging-and-splitting method is effective in robustly handling collisions and avoiding penetrations in particle-based simulations. We also show how our merging-and-splitting approach can be used for coupling different simulation systems using different and otherwise incompatible integrators. We present simulation tests involving complex solid-fluid interactions, including solid fractures generated by fluid interactions.

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Section: Resultsmentioning

confidence: 99%