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A two-species hydrodynamic model of particles interacting through self-alignment

Laurent Navoret 1, 2, *
* Corresponding author
2 CALVI - Scientific computation and visualization
IRMA - Institut de Recherche Mathématique Avancée, LSIIT - Laboratoire des Sciences de l'Image, de l'Informatique et de la Télédétection, Inria Nancy - Grand Est, IECL - Institut Élie Cartan de Lorraine
Abstract : In this paper, we present a two-species Vicsek model, that describes alignment interactions of self-propelled particles which can either move or not. The model consists in two populations with distinct Vicsek dynamics that interact only via the passage of the particles from one population to the other. The derivation of a macroscopic description of this model is performed using the methodology used for the Vicsek model: we find out a regime where alignment in the whole population occurs. We obtain a new macroscopic model for the densities of each populations and the common mean direction of the particles. The treatment of the non-conservativity of the interactions requires a detail study of the linearised interaction operator.
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Submitted on : Tuesday, January 7, 2014 - 10:58:07 AM
Last modification on : Friday, June 19, 2020 - 9:22:04 AM
Document(s) archivé(s) le : Monday, April 7, 2014 - 11:01:23 PM


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  • HAL Id : hal-00924803, version 1
  • ARXIV : 1401.1379


Laurent Navoret. A two-species hydrodynamic model of particles interacting through self-alignment. 2012. ⟨hal-00924803⟩