Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2006-08-07
Physics
Condensed Matter
Statistical Mechanics
13 pages, 8 figures, to be published in J. Phys. A Math. Gen
Scientific paper
10.1088/0305-4470/39/35/001
We show how the Gillespie algorithm, originally developed to describe coupled chemical reactions, can be used to perform numerical simulations of a granular intruder particle colliding with thermalized bath particles. The algorithm generates a sequence of collision ``events'' separated by variable time intervals. As input, it requires the position-dependent flux of bath particles at each point on the surface of the intruder particle. We validate the method by applying it to a one-dimensional system for which the exact solution of the homogeneous Boltzmann equation is known and investigate the case where the bath particle velocity distribution has algebraic tails. We also present an application to a granular needle in bath of point particles where we demonstrate the presence of correlations between the translational and rotational degrees of freedom of the intruder particle. The relationship between the Gillespie algorithm and the commonly used Direct Simulation Monte Carlo (DSMC) method is also discussed.
Talbot John
Viot Pascal
No associations
LandOfFree
Application of the Gillespie algorithm to a granular intruder particle 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 Application of the Gillespie algorithm to a granular intruder particle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Application of the Gillespie algorithm to a granular intruder particle will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-600647