Self-alignment driven by jump processes: Macroscopic limit and numerical investigation

Giacomo Dimarco, Sebastien Motsch

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

In this paper, we are interested in studying self-alignment mechanisms described as jump processes. In the dynamics proposed, active particles are moving at a constant speed and align with their neighbors at random times following a Poisson process. This dynamics can be viewed as an asynchronous version of the so-called Vicsek model. Starting from this particle dynamics, we introduce the related kinetic description and then derive a continuum hydrodynamic model. We then introduce different discretization strategies for the hierarchy of proposed models, we numerically study the convergence of the schemes and compare the behaviors of the different systems for several test cases.

Original languageEnglish (US)
Pages (from-to)1385-1410
Number of pages26
JournalMathematical Models and Methods in Applied Sciences
Volume26
Issue number7
DOIs
StatePublished - Jun 30 2016

Keywords

  • macroscopic limit
  • Relaxation system
  • self-organized hydrodynamic
  • self-propelled particles
  • semi-Lagrangian schemes
  • Vicsek model

ASJC Scopus subject areas

  • Applied Mathematics
  • Modeling and Simulation

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