Thermal conductivity performance in sodium alginate-based Casson nanofluid flow by a curved Riga surface

Frontiers in Materials

Materials

Umair Khan¹  K. V. Nagaraja²  J. K. Madhukesh²  B. Shanker³  Jasgurpreet Singh Chohan⁴  Ioannis E. Sarris⁵  K. Vinutha⁶  El-Sayed M. Sherif⁷  Ahmed M. Hassan⁸ 

[1] Department of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia;Department of Computer Science and Mathematics, Lebanese American University, Byblos, Lebanon;Department of Mathematics and Social Sciences, Sukkur IBA University, Sukkur, Sindh, Pakistan;Department of Mathematics, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru, India;Department of Mathematics, CVR College of Engineering, Rangareddy, India;Department of Mechanical Engineering and University Centre for Research and Development, Chandigarh University, Mohali, Punjab, India;Department of Mechanical Engineering, University of West Attica, Athens, Greece;Department of Studies in Mathematics, Davangere University, Davangere, India;Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia;Mechanical Engineering, Future University in Egypt, New Cairo, Egypt;

关键词: curved stretching sheet;    Riga plate;    casson nanofluid;    thermal radiation;    porous medium;   

DOI  :  10.3389/fmats.2023.1253090

 received in 2023-07-04, accepted in 2023-08-04,  发布年份 2023

来源: Frontiers

【 摘 要 】

This study examines the effects of a porous media and thermal radiation on Casson-based nano liquid movement over a curved extending surface. The governing equations are simplified into a system of ODEs (ordinary differential equations) using the appropriate similarity variables. The numerical outcomes are obtained using the shooting method and Runge-Kutta Fehlbergs fourth-fifth order (RKF-45). An analysis is conducted to discuss the impact of significant nondimensional constraints on the thermal and velocity profiles. The findings show that the rise in curvature constraint will improve the velocity but diminish the temperature. The increased values of the modified Hartmann number raise the velocity, but a reverse trend is seen for increased porosity parameter values. Thermal radiation raises the temperature, while modified Hartmann numbers and the Casson factor lower the velocity but raise the thermal profile. Moreover, the existence of porous and solid fractions minimizes the surface drag force, and radiation and solid fraction components enhance the rate of thermal dispersion. The findings of this research may have potential applications in the design of heat exchangers used in cooling electronic devices like CPUs and GPUs, as well as microscale engines such as microturbines and micro-heat engines.

【 授权许可】

Unknown   
Copyright © 2023 Nagaraja, Vinutha, Madhukesh, Khan, Singh Chohan, Sherif, Sarris, Hassan and Shanker.