EFFECTS OF AGENT'S REPULSION IN 2D FLOCKING MODELS

Najem Moussa (), Iliass Tarras (), M'Hammed Mazroui () and Yahya Boughaleb ()
Additional contact information
Najem Moussa: Département de Mathématique et Informatique, Université Chouaib Doukkali Faculté des Sciences, B. P. 299-24000/EL Jadida, Maroc
Iliass Tarras: Laboratoire de Physique de la Matière Condensée, Unité de recherche associée au CNRST (URAC10), Université Hassan II-Mohammedia Faculté des Sciences, Ben M'Sik, Avenue Cdt Driss El-Harti, B. P. 7955-20800/Casablanca, Maroc
M'Hammed Mazroui: Laboratoire de Physique de la Matière Condensée, Unité de recherche associée au CNRST (URAC10), Université Hassan II-Mohammedia Faculté des Sciences, Ben M'Sik, Avenue Cdt Driss El-Harti, B. P. 7955-20800/Casablanca, Maroc
Yahya Boughaleb: Laboratoire de Physique de la Matière Condensée, Unité de recherche associée au CNRST (URAC10), Université Hassan II-Mohammedia Faculté des Sciences, Ben M'Sik, Avenue Cdt Driss El-Harti, B. P. 7955-20800/Casablanca, Maroc;

International Journal of Modern Physics C (IJMPC), 2011, vol. 22, issue 07, 661-668

Abstract: In nature many animal groups, such as fish schools or bird flocks, clearly display structural order and appear to move as a single coherent entity. In order to understand the complex behavior of these systems, many models have been proposed and tested so far. This paper deals with an extension of the Vicsek model, by including a second zone of repulsion, where each agent attempts to maintain a minimum distance from the others. The consideration of this zone in our study seems to play an important role during the travel of agents in the two-dimensional (2D) flocking models. Our numerical investigations show that depending on the basic ingredients such as repulsion radius (R1), effect of density of agents (ρ) and noise (η), our nonequilibrium system can undergo a kinetic phase transition from no transport to finite net transport. For different values of ρ, kinetic phase diagrams in the plane (η ,R1) are found. Implications of these findings are discussed.

Keywords: Flock; collective motion; noise; agent of repulsion; kinetic phase transition; 05.65.+b; 87.10.-e (search for similar items in EconPapers)
Date: 2011
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0129183111016518
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:ijmpcx:v:22:y:2011:i:07:n:s0129183111016518

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0129183111016518

Access Statistics for this article

International Journal of Modern Physics C (IJMPC) is currently edited by H. J. Herrmann

More articles in International Journal of Modern Physics C (IJMPC) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().