Anisotropic slip magneto-bioconvection flow from a rotating cone to a nanofluid with Stefan Blowing effects

Beg, OA; Zohra, FT; Uddin, MJ; Ismail, AIM; Kadir, Ali

Abstract

A mathematical model for two dimensional steady laminar natural convective anisotropic slip boundary layer flows from a rotating vertical cone embedded in ethylene glycol bionanofluid is presented. The influence of Stefan blowing is also taken into account. Four different nonparticles namely Copper (Cu), Alumina (Al2O3), Copper Oxide (Cuo), Titanium Oxide (TiO2) are explored. Suitable similarity transformations are used to convert the governing equations into non-linear ordinary differential equations. These are then solved numerically, with appropriate boundary conditions, utilizing an implicit finite difference method (the BVP5C code in MATLAB). During computation Sc, Lb, Le and Lb are presented as unity, whilst Pr is taken as 151.The effects of the governing parameters on the dimensionless velocities,
temperature, nanoparticle volume fraction, density of motile microorganisms as well as on the local skin friction, local Nusselt, Sherwood number and motile micro-organism number density
are thoroughly examined via tables and graphs. It is found that the skin friction factor increases with tangential slip, magnetic field and Schmidt number whilst it decreases with blowing parameter and spin parameters. It is further observed that both the friction and heat transfer rates are highest for copper nanoparticles and lowest for TiO2 nanoparticles. Validation of the BVP5C numerical solutions with published results for several special cases of the general model is included. The study is relevant to electro-conductive bio-nano-materials processing.

Citation

Beg, O., Zohra, F., Uddin, M., Ismail, A., & Kadir, A. (2017). Anisotropic slip magneto-bioconvection flow from a rotating cone to a nanofluid with Stefan Blowing effects. Chinese Journal of Physics, 56(1), 432-448. https://doi.org/10.1016/j.cjph.2017.08.031

• Journal Article Type: Article
• Acceptance Date: Aug 20, 2017
• Online Publication Date: Sep 28, 2017
• Publication Date: Sep 28, 2017
• Deposit Date: Aug 22, 2017
• Publicly Available Date: Mar 6, 2019
• Journal: Chinese Journal Of Physics
• Print ISSN: 0577-9073
• Publisher: Elsevier
• Volume: 56
• Issue: 1
• Pages: 432-448
• DOI: https://doi.org/10.1016/j.cjph.2017.08.031
• Publisher URL: http://dx.doi.org/10.1016/j.cjph.2017.08.031
• Related Public URLs: https://www.journals.elsevier.com/chinese-journal-of-physics/
• Additional Information: Funders : Universiti Sains Malaysia; Projects : SWIRLING FLOW OF BIO-NANO-POLYMERS; Grant Number: RU Grant 1001/PMATHS/8011013