Computational optimization for the deposition of bioconvection thin Oldroyd-B nanofluid with entropy generation

Scientific Reports

Qayyum Shah¹  Waris Khan²  Zafar Ullah³  Noor Saeed Khan⁴  Usa Wannasingha Humphries⁵  Auwalu Hamisu Usman⁶  Phatiphat Thounthong⁷  Amyia Bhaumik⁸  Poom Kumam⁹  Attapol Kaewkhao^1,10 

[1] Department of Basic Sciences and Islamiyat, University of Engineering and Technology, 25000, Peshawar, Khyber Pakhtunkhwa, Pakistan;Faculty of Engineering, Lincoln University College (LUC), 1440, Lincoln, Malaysia;Department of Mathematics and Statistics, Hazara University, 21120, Mansehra, Khyber Pakhtunkhwa, Pakistan;Department of Mathematics, Division of Science and Technology, University of Education, 54770, Lahore, Pakistan;Department of Mathematics, Division of Science and Technology, University of Education, 54770, Lahore, Pakistan;Center of Excellence in Theoretical and Computational Science (TaCS-CoE), Science Laboratory Building, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha-Uthit Road, Bang Mod, Thung Khru, 10140, Bangkok, Thailand;Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha-Uthit Road, Bang Mod, Thung Khru, 10140, Bangkok, Thailand;Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha-Uthit Road, Bang Mod, Thung Khru, 10140, Bangkok, Thailand;KMUTTFixed Point Research Laboratory, Room SCL 802 Fixed Point Laboratory, Science Laboratory Building, Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha-Uthit Road, Bang Mod, Thung Khru, 10140, Bangkok, Thailand;Department of Mathematical Sciences, Bayero University, Kano, 700241, Kano, Nigeria;Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, Renewable Energy Research Centre, King Mongkut’s University of Technology North Bangkok, 1518 Pracharat 1 Road, Bangsue, 10800, Bangkok, Thailand;Faculty of Engineering, Lincoln University College (LUC), 1440, Lincoln, Malaysia;KMUTTFixed Point Research Laboratory, Room SCL 802 Fixed Point Laboratory, Science Laboratory Building, Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha-Uthit Road, Bang Mod, Thung Khru, 10140, Bangkok, Thailand;Center of Excellence in Theoretical and Computational Science (TaCS-CoE), Science Laboratory Building, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha-Uthit Road, Bang Mod, Thung Khru, 10140, Bangkok, Thailand;Department of Medical Research, China Medical University Hospital, China Medical University, 40402, Taichung, Taiwan;Research Center in Mathematics and Applied Mathematics, Department of Mathematics, Faculty of Science, Chiang Mai University, 50200, Chiang Mai, Thailand;

DOI  :  10.1038/s41598-021-91041-5

来源: Springer

【 摘 要 】

The behavior of an Oldroyd-B nanoliquid film sprayed on a stretching cylinder is investigated. The system also contains gyrotactic microorganisms with heat and mass transfer flow. Similarity transformations are used to make the governing equations non-dimensional ordinary differential equations and subsequently are solved through an efficient and powerful analytic technique namely homotopy analysis method (HAM). The roles of all dimensionless profiles and spray rate have been investigated. Velocity decreases with the magnetic field strength and Oldroyd-B nanofluid parameter. Temperature is increased with increasing the Brownian motion parameter while it is decreased with the increasing values of Prandtl and Reynolds numbers. Nanoparticle’s concentration is enhanced with the higher values of Reynolds number and activation energy parameter. Gyrotactic microorganism density increases with bioconvection Rayleigh number while it decreases with Peclet number. The film size naturally increases with the spray rate in a nonlinear way. A close agreement is achieved by comparing the present results with the published results.

【 授权许可】

CC BY