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Bioconvection peristaltic flow in an asymmetric channel filled by nanofluid containing gyrotactic microorganism: Bio nano engineering model

Noreen Sher Akbar (CEME, National University of Sciences and Technology, Islamabad, Pakistan)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 2 March 2015

Abstract

Purpose

The purpose of this paper is to discuss free convection peristaltic flow in an asymmetric channel with nanofluid containing gyrotactic microorganism.

Design/methodology/approach

The governing equations for proposed model are simplified using “long wavelength and low Reynolds number approximation.” Numerical solutions have been presented for “velocity, pressure gradient, the solid volume fraction nanoparticles, temperature profile and density of motile microorganisms.” The effects of various flow parameters, i.e Hartmann number, the solid volume fraction of the nanoparticles amplitude ratio, Prandtl number, bioconvection Péclet number, bioconvection constant, bioconvection Rayleigh number are presented.

Findings

The author finds that the pressure rise increases with an increase in Hartmann number, Grashof number bioconvection, Rayleigh number and buoyancy ratio in the peristaltic pumping section.

Originality/value

The peristaltic flow nanofluid containing gyrotactic microorganism is explored in the literature for the first time.

Keywords

Citation

Akbar, N.S. (2015), "Bioconvection peristaltic flow in an asymmetric channel filled by nanofluid containing gyrotactic microorganism: Bio nano engineering model", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 25 No. 2, pp. 214-224. https://doi.org/10.1108/HFF-07-2013-0242

Publisher

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Emerald Group Publishing Limited

Copyright © 2015, Emerald Group Publishing Limited