Jump to ContentJump to Main Navigation
Natural ComplexityA Modeling Handbook$
Users without a subscription are not able to see the full content.

Paul Charbonneau

Print publication date: 2017

Print ISBN-13: 9780691176840

Published to Princeton Scholarship Online: May 2018

DOI: 10.23943/princeton/9780691176840.001.0001

Show Summary Details
Page of

PRINTED FROM PRINCETON SCHOLARSHIP ONLINE (www.princeton.universitypressscholarship.com). (c) Copyright Princeton University Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in PRSO for personal use.date: 28 May 2022



(p.224) 10 Flocking
Natural Complexity

Paul Charbonneau

Princeton University Press

This chapter examines the complex nature of flocking. Many living creatures have evolved flocking as a behavioral strategy, including herds, birds, and insects. Models of flocking have been used to understand and control the movement of dense human crowds in socially extreme situations. The chapter begins with a discussion of the flocking model, defined in two spatial dimensions on the periodic unit square in which N agents are moving, under the influence of four forces: repulsion, flocking, self-propulsion, and random forces. It then describes the numerical implementation of the model using the Python code, along with the range of global behaviors generated by the the model. It also considers the spontaneous segregation of active and passive flockers before concluding with an analysis of the perturbing effects of panicked individuals on collective, ordered motion, focusing on two types of agents: strongly flocking “calm” agents and small random force.

Keywords:   flocking, agents, repulsion, self-propulsion, Python code, segregation, active flockers, passive flockers, panic

Princeton Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us.