Numerical Simulations of Granular Dynamics: Method and Tests

Details Numerical Simulations of Granular Dynamics: Method and Tests Numerical Simulations of Granular Dynamics: Method and Tests

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.6309r&link_type=abstract

American Astronomical Society, DPS meeting #42, #63.09; Bulletin of the American Astronomical Society, Vol. 42, p.1093

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a new particle-based numerical method for the simulation of granular dynamics, with application to motions of particles (regolith) on small solar system bodies and planetary surfaces [1]. The method employs the parallel N-body tree code pkdgrav [2] to search for collisions and compute particle trajectories. Particle confinement is achieved by combining arbitrary combinations of four provided wall primitives, namely infinite plane, finite disk, infinite cylinder, and finite cylinder, and degenerate cases of these. Various wall movements, including translation, oscillation, and rotation, are supported. Several tests of the method are presented, including a model granular "atmosphere” that achieves correct energy equipartition, and a series of tumbler simulations that compare favorably with actual laboratory experiments [3]. DCR and SRS acknowledge NASA Grant No. NNX08AM39G and NSF Grant No. AST0524875; KJW, the Poincaré Fellowship at OCA; NM, Thales Alenia Space and The Open University; and PM and NM, the French Programme National de Planétologie.
References: [1] Richardson et al. (2010), Icarus, submitted; [2] Cf. Richardson et al. (2009), P&SS 57, 183 and references therein; [3] Brucks et al. (2007), PRE 75, 032301-1-032301-4.

Affiliated with

Also associated with

No associations

Rating

Numerical Simulations of Granular Dynamics: Method and Tests does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Numerical Simulations of Granular Dynamics: Method and Tests, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical Simulations of Granular Dynamics: Method and Tests will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1230503