๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Thermo-bioconvection in a suspension of oxytactic bacteria

โœ Scribed by A.V. Kuznetsov

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
164 KB
Volume
32
Category
Article
ISSN
0735-1933

No coin nor oath required. For personal study only.

โœฆ Synopsis

This paper studies thermo-bioconvection, a macroscopic convective motion induced in a fluid layer by the combined effect of density stratification caused by the upswimming of oxytactic microorganisms and heating from below. Both agencies affecting the density are destabilizing; therefore, monotonic instability is expected. Oscillatory instability may be possible in the case of cooling from below.

๐Ÿ“œ SIMILAR VOLUMES

Stability analysis of thermo-bioconvecti
Stability analysis of thermo-bioconvection in suspensions of gravitactic microorganisms in a fluid layer
โœ Z. Alloui; T.H. Nguyen; E. Bilgen ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 569 KB

In this paper, we investigate the effect of heating or cooling from below on the stability of a suspension of motile gravitactic microorganisms in a shallow fluid layer. The linear perturbation theory is used to obtain the stability diagram and the critical conditions for the onset of convection. It

The onset of bioconvection in a suspensi
The onset of bioconvection in a suspension of negatively geotactic microorganisms with high-frequency vertical vibration
โœ A.V. Kuznetsov ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 151 KB

The effect of vertical vibration on the stability of a dilute suspension of negatively geotactic microorganisms in a fluid layer of finite depth is investigated. For the case of high-frequency vibration, solutions of governing equations are decomposed into two components: one which varies slowly wit

The onset of bioconvection in a suspensi
The onset of bioconvection in a suspension of gyrotactic microorganisms in a fluid layer of finite depth heated from below
โœ A.V. Kuznetsov ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 139 KB

The aim of this paper is to investigate the effect of heating from below on the stability of a suspension of motile gyrotactic microorganisms in a fluid layer of finite depth. This problem is relevant to a number of geophysical applications, such as investigation of the dynamics of some species of t

Bioconvection of gravitactic microorgani
Bioconvection of gravitactic microorganisms in a vertical cylinder
โœ Z. Alloui; T.H. Nguyen; E. Bilgen ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 225 KB

Patterns formation of gravitactic microorganism in a vertical cylinder is described by the Navier-Stokes equation coupled with the microorganism conservation equation. The control volume method is used to solve numerically these equations. It is found that when the Peclet number is decreased, the cr