Chemically reactive bioconvection flow of tangent hyperbolic nanoliquid with gyrotactic microorganisms and nonlinear thermal radiation

Kamel Al-Khaled; Sami Ullah Khan; Ilyas Khan

doi:10.1016/j.heliyon.2019.e03117

Chemically reactive bioconvection flow of tangent hyperbolic nanoliquid with gyrotactic microorganisms and nonlinear thermal radiation

Heliyon. 2019 Dec 30;6(1):e03117. doi: 10.1016/j.heliyon.2019.e03117. eCollection 2020 Jan.

Authors

Kamel Al-Khaled¹, Sami Ullah Khan², Ilyas Khan³

Affiliations

¹ Department of Mathematics & Statistics, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan.
² Department of Mathematics, COMSATS University Islamabad, Sahiwal, 57000, Pakistan.
³ College of Engineering, Majmaah University, P.O. Box 66, Majmaah, Saudi Arabia.

Abstract

On the account of motivating fabrication of bioconvection phenomenon in various engineering and industrial systems, an attention has been devoted by researchers in current decade. Therefore, this theoretical investigation deals with the utilization of bioconvection phenomenon in flow of tangent hyperbolic nanofluid over an accelerated moving surface. It is assumed that the flow is generated due to periodically motion of the sheet. The energy equation is modified by entertaining the nonlinear thermal radiation features. The chemical reaction effects are elaborated in the concentration equation. Moreover, the significance of present flow problem increases by utilizing the thermophoresis and Brownian motion effects. The governing equations are transmuted into non-dimensional form with utilization of appropriate quantities. The analytical solution is computed by using homotopy analysis method. The implications of promising parameters on velocity profile, temperature profile, nanoparticles volume fraction and microorganisms profile is evaluated graphically. The presence of radiation parameter, thermophoresis and Brownian motion effects are more frequent for enhancement of heat transfer. The reported observations can efficiently use in the improvement of heat transfer devices as well as microbial fuel cells.

Keywords: Computational mathematics; Industrial engineering; Motile organisms; Oscillatory stretching sheet; Physics methods; Tangent hyperbolic nanofluid; Theoretical fluid dynamics; Thermodynamics; Variable thermal conductivity.