Abstract
We investigate the influence of the packing fraction of highly polydisperse
particle systems on the performance of a high-performance multilevel contact detection algorithm as applied for molecular dynamics type simulations. For best performance, this algorithm requires two or more hierarchy levels in order to cope with the strongly different particle size classes. In order to predict the optimal number of levels, an empirical parameter corresponding to the "overhead" is identified. For homogeneous systems, the density is not much affecting the performance of the algorithm, however, the optimal number of levels slightly increases with density as well as the speed-up as compared to a single-level method.
| Original language | English |
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| Title of host publication | International conference on particle based methods |
| Editors | E Onate, D.R.J Owen |
| Place of Publication | Barcelona |
| Publisher | CIMNE |
| Pages | 1-4 |
| Number of pages | 7 |
| ISBN (Print) | 978-84-89925-69-4 |
| Publication status | Published - 26 Oct 2011 |
| Event | 2nd International Conference on Particle-based Methods, PARTICLES 2011 - Barcelona, Spain Duration: 26 Oct 2011 → 28 Oct 2011 Conference number: 2 http://congress.cimne.com/particles2011/frontal/default.asp |
Publication series
| Name | |
|---|---|
| Publisher | Eccomas |
Conference
| Conference | 2nd International Conference on Particle-based Methods, PARTICLES 2011 |
|---|---|
| Abbreviated title | PARTICLES |
| Country/Territory | Spain |
| City | Barcelona |
| Period | 26/10/11 → 28/10/11 |
| Internet address |
Keywords
- Contact detection
- IR-80383
- METIS-284481
- packing fractioncontact detection
- packing fraction
- Polydisperse
- particle size distribution
- discrete element