Ouyang, Yun and Basir, Md Faisal Md and Naganthran, Kohilavani and Pop, Ioan (2025) Exploring heat generation and magnetic effects on unsteady ternary nanofluid flow over a dynamic wedge in porous media. Chinese Journal of Physics, 93. pp. 531-548. ISSN 0577-9073, DOI https://doi.org/10.1016/j.cjph.2024.12.026.
Full text not available from this repository.Abstract
In the die-slit process, unsteady MHD ternary nanofluid flow over a moving wedge helps enhance material quality and production efficiency. This study specifically examines unsteady MHD flow dynamics involving heat generation/absorption, viscous dissipation, and Ohmic heating effects, using a ternary nanofluid composed of Al2O3-CuO-Cu/water over a moving wedge. Mathematical modeling and numerical computation analyze how heat generation/absorption impacts flow characteristics. Critical values for single and dual solutions are obtained using BVP4C in MATLAB, with dual solutions for leftward wedge motion and a single solution for rightward motion. Graphical results illustrate the influence of key parameters - involving the moving parameter, wedge parameter, Eckert number, magnetic parameter, heat source/sink parameter, and Darcy number - on flow dynamics and thermal transfer. The main results show that convective thermal transfer rises with larger values of the suction/injection parameter, unsteadiness parameter, Eckert number, and magnetic parameter, while it decreases during the rinsing process for the wedge angle parameter, Darcy number, and heat source/sink parameter. When the moving wedge parameter is -4, the heat transfer of THNF is 0.44% higher than NHF and 1.30% higher than NF. This study proposes a novel formulation for the time-varying permeability of a porous medium influenced by a moving wedge, offering valuable insights to enhance material properties, minimize waste, and improve precision in the extrusion process.
| Item Type: | Article |
|---|---|
| Funders: | Hechi University Scientific Research Project, China (2022YLXK001), Universiti Teknologi Malaysia, UTM fundamental Research (UTMFR) (Q.J130000.3854.21H91), Ministry of Higher Education (MoHE) Malaysia via the Fundamental Research Grant Scheme (FRGS) (FRGS/1/2023/STG06/UM/02/14), Key Laboratory of AI and Information Processing (Hechi University) , Education Department of Guangxi Zhuang Autonomous Region |
| Uncontrolled Keywords: | Ternary nanofluid; Unsteady MHD flow; Wedge flow; Viscous dissipation and Ohmic heating; Porous media; Heat generation/absorption |
| Subjects: | Q Science > QA Mathematics Q Science > QC Physics |
| Divisions: | Faculty of Science Faculty of Science > Institute of Mathematical Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 14 Mar 2025 00:28 |
| Last Modified: | 14 Mar 2025 01:15 |
| URI: | http://eprints.um.edu.my/id/eprint/47725 |
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