Aggregation of chemotactic organisms in a differential flow

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Title: Aggregation of chemotactic organisms in a differential flow
Authors: Muñoz-García, Javier
Neufeld, Zoltán
Permanent link: http://hdl.handle.net/10197/5033
Date: Dec-2009
Abstract: We study the effect of advection on the aggregation and pattern formation in chemotactic systems described by Keller-Segel-type models. The evolution of small perturbations is studied analytically in the linear regime complemented by numerical simulations. We show that a uniform differential flow can significantly alter the spatial structure and dynamics of the chemotactic system. The flow leads to the formation of anisotropic aggregates that move following the direction of the flow, even when the chemotactic organisms are not directly advected by the flow. Sufficiently strong advection can stop the aggregation and coarsening process that is then restricted to the direction perpendicular to the flow.
Type of material: Journal Article
Publisher: American Physical Society
Copyright (published version): 2009 American Physical Society
Keywords: chemotactic organisms;aggregation;pattern formation;differential flow;Keller-Segel models
DOI: 10.1103/PhysRevE.80.061902
Language: en
Status of Item: Peer reviewed
Appears in Collections:SBI Research Collection

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