Collective Dynamics and Motility of Soft Elliptical Particles

Ruben van Drongelen () and Timon Idema ()
Additional contact information
Ruben van Drongelen: Delft University of Technology
Timon Idema: Delft University of Technology

A chapter in Traffic and Granular Flow '15, 2016, pp 605-612 from Springer

Abstract: Abstract Swarming behaviourVan Drongelen, Ruben is abundant in nature. Over many different lengthIdema, Timon scales, in for example herds, flocking birds and swimming bacteria, roughly identical individuals interact locally to achieve group behaviour. The similarities between these examples suggests the existence of a general underlying principle. We propose here a local interaction model for self-propelling, elliptical particles that results in collective motion. Any particle interacts with its neighbours only, experiences noise on its orientation and pushes inwards if it is in the outer layer of the group. Initially, alignment between particles is the result of steric repulsion. We observe two types of group behaviour. The first type is a migrating group, where particles in the bulk are aligned over large length scales, but do not rearrange. The second type has very little net motion. The elliptical particles form smaller regions of aligned and antialigned particles, effectively cancelling the net motion of the group. Finally, we compare the group behaviour of elliptical particles to circular ones and investigate the importance of polar alignment. We conclude that polar alignment is a requirement for large-scale collective dynamics, like collective migration and rotation.

Keywords: Collective Behaviour; Circular Particle; Vicsek Model; Collective Migration; Elliptical Particle (search for similar items in EconPapers)
Date: 2016
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

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:spr:sprchp:978-3-319-33482-0_76

Ordering information: This item can be ordered from
http://www.springer.com/9783319334820

DOI: 10.1007/978-3-319-33482-0_76

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().