Particle simulator and method of simulating particles
US8554527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Jan 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2111/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The memory size used in DEM calculation of particle having a particle diameter distribution is suppressed.A particle simulator includes a particle-information retaining unit 11 holding particle information including position and velocity information of a particle group, a particle-number changing unit 14 assigning particle numbers specifying particles in an order in accordance with the positions of the particles to the particle, a contact-candidate-list preparing unit 16 selecting particle pairs of a target particle and another particle that may be in contact with the target particle, a contact determining unit 18 calculating contact forces generated between particles in the particle pairs on the basis of particle information and storing the contact forces in the contact-force tables, a contact-force calculating unit 19 extracting contact forces of particles having a diameter greater than particles from contact-force tables using a contact-force reference table 54, extracting contact forces of particles having a diameter smaller than the particles by specifying the storage positions in the contact-force tables using integrated-contact-candidate numbers s_jgi[i], and calculating the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.