Effective drift velocities and effective diffusivities of swimming microorganisms in external flows

Authors
Yannacopoulos, AN Rowlands, G
Citation
An. Yannacopoulos et G. Rowlands, Effective drift velocities and effective diffusivities of swimming microorganisms in external flows, J MATH BIOL, 39(2), 1999, pp. 172-192
Citations number
13
Categorie Soggetti
Multidisciplinary
Journal title
JOURNAL OF MATHEMATICAL BIOLOGY
ISSN journal
03036812 → ACNP
Volume
39
Issue
2
Year of publication
1999
Pages
172 - 192
Database
ISI
SICI code
0303-6812(199908)39:2<172:EDVAED>2.0.ZU;2-D
Abstract
In this note we calculate the effective drift velocities and the effective diffusivities of swimming microorganisms in an external flow field. It is s hown that if the ambient velocity field is incompressible then the effects of reorientation of the cells can under certain circumstances enhance the e ffective drift velocity along the preferred direction.