Bioconvection in a non-Darcy porous medium saturated with a nanofluid and oxytactic micro-organisms

S. Shaw, P. K. Kameswaran, M. Narayana, P. Sibanda

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The aim of this paper is to present a continuum model for bioconvection of oxytactic micro-organisms in a non-Darcy porous medium and to investigate the effects of bioconvection and mixed convection on the steady boundary layer flow past a horizontal plate embedded in a porous medium filled with a water-based nanofluid. The governing partial differential equations for momentum, heat, oxygen and micro-organism conservation are reduced to a set of nonlinear ordinary differential equations using similarity transformations that are numerically solved using a built-in MATLAB ODE solver. The effects of the bioconvection parameters on the nanofluid fluid properties, nanoparticle concentration and the density of the micro-organism are analyzed. A comparative analysis of our results with those previously reported in the literature is given. Among the significant findings in this study is that bioconvection parameters highly influence heat, mass and motile micro-organism transfer rates.

Original languageEnglish
Article number1450005
JournalInternational Journal of Biomathematics
Volume7
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

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Nanofluid
Microorganisms
Porous Media
Porous materials
Mixed convection
Boundary layer flow
Ordinary differential equations
MATLAB
Partial differential equations
Conservation
Momentum
Heat
Nanoparticles
Mixed Convection
Oxygen
Fluids
Similarity Transformation
Boundary Layer Flow
Continuum Model
Nonlinear Ordinary Differential Equations

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Applied Mathematics

Cite this

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Bioconvection in a non-Darcy porous medium saturated with a nanofluid and oxytactic micro-organisms. / Shaw, S.; Kameswaran, P. K.; Narayana, M.; Sibanda, P.

In: International Journal of Biomathematics, Vol. 7, No. 1, 1450005, 01.01.2014.

Research output: Contribution to journalArticle

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