Investigating the Sensitivity of Tetra-hybrid Microfluidic Flow Under Magnetic Field Localization

Articles in Press

Document Type : Research Article

Authors

1 - Graduate Program of Ocean Engineering, School of Engineering, Universidade Federal do Rio Grande, Rio Grande, Brazil, Italia Avenue, km 8, 96201-900. - Department of Basic Sciences and Humanities, Muhammad Nawaz Sharif University of Engineering and Technology, Multan 60000, Pakistan - Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China

2 - Graduate Program of Ocean Engineering, School of Engineering, Universidade Federal do Rio Grande, Rio Grande, Brazil, Italia Avenue, km 8, 96201-900 - Programa de Pós-Graduação em Modelagem Computacional/LMCE, Escola de Engenharia, Universidade Federal do Rio Grande - FURG, 96203900, Rio Grande - RS, Brasil - FURG, Escola de Engenharia, Rio Grande - RS, Brasil

3 Department of Basic Sciences and Humanities, Muhammad Nawaz Sharif University of Engineering and Technology, Multan 60000, Pakistan

4 - School of Mathematical Sciences, Zhejiang Normal University, Jinhua 321004, China - Department of Mathematics, Ghazi University, Dera Ghazi Khan 32200, Pakistan

5 Petroleum Engineering Department, College of Engineering, University of Kerbala, Karbala 56001, Iraq.

6 - Department of Computational Mathematics and Computer Science, Institute of Natural Sciences and Mathe- matics, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia - Department of Mechanics and Mathematics, Western Caspian University, Baku, 1001, Azerbaijan

7 Chemical Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha'il 81441, Saudi Arabia.

8 - Department of Mechanical Engineering, College of Engineering, King Khalid University, P.O. Box 394, Abha 61421, Saudi Arabia. - Center for Engineering and Technology Innovations, King Khalid University, Abha 61421, Saudi Arabia.

10.24200/sci.2025.65461.9504

Abstract

This study explores the sensitivity of tetra-hybrid microfluidic flow to localized magnetic fields, focusing on their impact on flow dynamics, stress distribution, and thermal behavior. A rectangular cavity (aspect ratio 4:1) filled with a tetra-hybrid nanofluid is analyzed, with the top and bottom walls moving in the same direction. A confined magnetic field, structured in horizontal and vertical strips, is introduced to assess its influence. An alternating-direction implicit method has been used to enhance numerical stability and efficiently solve the discretized governing equations, and the single-phase model has been used to model the fluid. Furthermore, custom MATLAB codes, employing the Stream-Vorticity formulation and a finite difference method, are used to solve the governing equations. The findings demonstrate that in-creasing the magnetic field strength up to 500 enhances heat transfer by 65%. Among nanostructures, a 20% silver concentration yields the highest improvement, increasing the Nusselt number by 313%, fol-lowed by SWCNT (54%), TiO₂ (43%), and Cu (31%). Regarding skin friction, silver and TiO₂ reduce it by 65%, while Cu lowers it by 52%. However, SWCNT exhibits an opposite effect, increasing skin friction by 138% due to its elongated structure, which enhances flow resistance. These findings highlight the poten-tial for controlled magnetic field applications to optimize nanofluid performance in advanced thermal and biomedical systems.

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Scientia Iranica

Articles in Press, Accepted Manuscript
Available Online from 23 September 2025

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History

  • Receive Date: 05 October 2024
  • Revise Date: 15 March 2025
  • Accept Date: 23 September 2025

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