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Linear bioconvection in a suspension of randomly swimming, gyrotactic micro-organisms

Bees, M.A., and Hill, N.A. (1998) Linear bioconvection in a suspension of randomly swimming, gyrotactic micro-organisms. Physics of Fluids, 10 (8). pp. 1864-1881. ISSN 1070-6631 (doi:10.1063/1.869704)

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Abstract

We have analyzed the initiation of pattern formation in a layer of finite depth for Pedley and Kessler’s new model [J. Fluid Mech. 212, 155 (1990)] of bioconvection. This is the first analysis of bioconvection in a realistic geometry using a model that deals with random swimming in a rational manner. We have considered the effects of a distribution of swimming speeds, which has not previously received attention in theoretical papers and find that it is important in calculating the diffusivity. Our predictions of initial pattern wavelengths are reasonably close to the observed ones but better experimental measurements of key parameters are needed for a proper comparison.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hill, Prof Nicholas and Bees, Dr Martin
Authors: Bees, M.A., and Hill, N.A.
Subjects:Q Science > QR Microbiology
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Physics of Fluids
Journal Abbr.:Phys. fluids
ISSN:1070-6631
ISSN (Online):1089-7666

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