✦ LIBER ✦

A Microscale Model of Bacterial Swimming, Chemotaxis and Substrate Transport

✍ Scribed by Robert Dillon; Lisa Fauci; Donald Gaver; III

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 895 KB
Volume: 177
Category: Article
ISSN: 0022-5193
DOI: 10.1006/jtbi.1995.0251

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✦ Synopsis

In this paper, we introduce a mathematical and computational model at the microscale level of bacterial motility and chemotaxis coupled with the advection and diffusion of a biologically reacting substrate. The hydrodynamic interaction of a small bacterial population is explicitly modelled through the use of discrete representations of individual microbes. We use the immersed boundary method to couple microbial motion and the advection-diffusion of substrate with the full incompressible Navier-Stokes equations. Simulations using a preliminary two-dimensional model are presented, demonstrating the mutual dependence through the fluid media of several swimming bacteria. A run and tumble mechanism is introduced for simulating the chemotaxis of swimming bacteria.

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