Weighted Particles in Coulomb Collision Simulations Based on the Theory of a Cumulative Scattering Angle

K. Nanbu, S. Yonemura

Research output: Contribution to journalArticlepeer-review

85 Citations (Scopus)

Abstract

A cumulative property of Coulomb collisions in plasmas was formulated by Nanbu. A succession of small-angle binary collisions is grouped into a unique binary collision with a large scattering angle; the law of scattering is given by the exponential cosine function. Proposed here is a Coulomb collision algorithm for weighted particles, based on that work. Three cases of the weight algorithm are considered: (1) the weights of particles are the same; (2) the weights of particles are different from species to species; and (3) the weights are different from particle to particle. Sample calculations demonstrate the accuracy of the weight algorithm.

Original languageEnglish
Pages (from-to)639-654
Number of pages16
JournalJournal of Computational Physics
Volume145
Issue number2
DOIs
Publication statusPublished - 1998 Sep 20

ASJC Scopus subject areas

  • Numerical Analysis
  • Modelling and Simulation
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Mathematics
  • Applied Mathematics

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