Computation of melting dissipative magnetohydrodynamic nanofluid bioconvection with second order slip and variable thermophysical properties

Amirsom, NA, Uddin, MJ, Basir, MFM, Kadir, A, Beg, OA and Ismail, AIM 2019, 'Computation of melting dissipative magnetohydrodynamic nanofluid bioconvection with second order slip and variable thermophysical properties' , Applied Sciences, 9 (12) , p. 2493.

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Abstract

This paper studies the combined effects of viscous dissipation, first and second order slip and variable transport properties on phase-change hydromagnetic bio-nanofluid convection flow from a stretching sheet. Nanoscale materials possess a much larger surface to volume ratio than bulk materials which significantly modifies their thermodynamic and thermal properties and lowers substantially the melting point. Gyrotactic non-magnetic micro-organisms are present in the nanofluid. The transport properties are assumed to be dependent on the concentration and temperature. Via appropriate similarity variables, the governing equation with boundary conditions are converted to nonlinear ordinary differential equations and are solved using the BVP4C subroutine in the symbolic software Matlab. The non-dimensional boundary value features a melting (phase change) parameter, temperature-dependent thermal conductive parameter, first as well as second order slip parameters, mass diffusivity parameter, Schmidt number, microorganism diffusivity parameter, bioconvection Schmidt number, magnetic body force parameter, Brownian motion and thermophoresis parameter. Extensive computations are visualized for the influence of these parameters. The present simulation is of relevance in the fabrication of bio-nanomaterials for bio-inspired fuel cells.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Applied Sciences
Publisher: MDPI
ISSN: 2076-3417
Related URLs:
Funders: Universiti Sains Malaysia
Depositing User: OA Beg
Date Deposited: 02 Apr 2019 13:41
Last Modified: 11 Jul 2019 15:00
URI: http://usir.salford.ac.uk/id/eprint/50933

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