Development of Dynamic Model and Analytical Analysis for the Diffusion of Different Species in Non-Newtonian Nanofluid Swirling Flow

Frontiers in Physics

Sadiya Ali Rano²  Auwalu Hamisu Usman²  Waris Khan³  Amir Khan⁴  Usa Wannasingha Humphries⁵  Zahir Shah⁶  Poom Kumam⁷  Noor Saeed Khan⁸  Zafar Ullah⁸ 

[1] Center of Excellence in Theoretical and Computational Science (TaCS-CoE), SCL 802 Fixed Point Laboratory, Science Laboratory Building, King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok, Thailand;Department of Mathematical Sciences, Bayero University, Kano, Nigeria;Department of Mathematics and Statistics, Hazara University Mansehra, Khyber Pakhtunkhwa, Pakistan;Department of Mathematics and Statistics, University of Swat, Khyber Pakhtunkhwa, Pakistan;Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok, Thailand;Department of Mathematics, University of Lakki Marwat, Lakki Marwat, Pakistan;Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan;Division of Science and Technology, Department of Mathematics, University of Education Lahore, Lahore, Pakistan;KMUTT-Fixed Point Theory and Applications Research Group, Theoretical and Computational Science Center (TaCS), Science Laboratory Building, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok, Thailand;

关键词: nanofluid;    nanofluid (Buongiorno model);    heat transfer;    gyrotactic microorganism;    rotating/stretching surface;   

DOI  :  10.3389/fphy.2020.616790

来源: DOAJ

【 摘 要 】

The analysis is carried out to analyze the flow through double stretchable rotating disks with the theory of radiative Cross nanofluid under the influence of variable thermal conductivity, the Hall current, Arrhenius activation energy, and binary chemical reactions. The Buongiorno nanofluid model is adopted for the governing equations of the problem which are transformed into ordinary differential equations through similarity transformations and then solved using the homotopy analysis method. The impact of dimensionless parameters on all profiles and physical quantities is presented and discussed. The radial velocity of the two disks increases with their corresponding ratio stretching rate parameter and decreases with the Hall parameter and the bioconvection Rayleigh number. The heat transfer at the lower disk enhances with the variable thermal conductivity parameter, while at the upper disk, opposite trend is observed. Mass transfer increases with the chemical reactions and temperature difference parameters at the lower disk and decreases with Arrhenius activation energy, whereas an opposite trend is observed at the upper disk. The local density number is enhanced for the larger values of Peclet and Lewis numbers. The comparison of the present work with the published literature authenticates the validation of the present work.

【 授权许可】

Unknown