Non-similar radiative bioconvection nanofluid flow under oblique magnetic field with entropy generation

Shukla, N; Rana, P; Kuharat, S; Beg, OA

Abstract

Motivated by exploring the near-wall transport phenomena involved in bioconvection fuel cells combined with electrically conducting
nanofluids, in the present article, a detailed analytical treatment using homotopy analysis method (HAM) is presented of non-similar
bioconvection flow of a nanofluid under the influence of magnetic field (Lorentz force) and gyrotactic microorganisms. The flow is induced
by a stretching sheet under the action of a oblique magnetic field. In addition, nonlinear radiation effects are considered which are
representative of solar flux in green fuel cells. A second thermodynamic law analysis has also been carried out for the present study to
examine entropy generation (irreversibility) minimization. The influence of magnetic parameter, radiation parameter and bioconvection
Rayleigh number on skin friction coefficient, Nusselt number, micro-organism flux and entropy generation number (EGN) is visualized
graphically with detailed interpretation. Validation of the HAM solutions with published results is also included for the non-magnetic case in
the absence of bioconvection and nanofluid effects. The computations show that the flow is decelerated with increasing magnetic body
force parameter and bioconvection Rayleigh number whereas it is accelerated with stronger radiation parameter. EGN is boosted with
increasing Reynolds number, radiation parameter and Prandtl number whereas it is reduced with increasing inclination of magnetic field.

Citation

Shukla, N., Rana, P., Kuharat, S., & Beg, O. (2022). Non-similar radiative bioconvection nanofluid flow under oblique magnetic field with entropy generation. Journal of applied and computational mechanics, 8(1), 206-218. https://doi.org/10.22055/JACM.2020.33580.2250

• Journal Article Type: Article
• Acceptance Date: Jul 29, 2020
• Online Publication Date: Mar 29, 2021
• Publication Date: Jan 1, 2022
• Deposit Date: Jul 29, 2020
• Publicly Available Date: Apr 1, 2021
• Journal: Journal of Applied and Computational Mechanics
• Volume: 8
• Issue: 1
• Pages: 206-218
• DOI: https://doi.org/10.22055/JACM.2020.33580.2250
• Publisher URL: https://doi.org/10.22055/JACM.2020.33580.2250
• Related Public URLs: http://jacm.scu.ac.ir/