Exploring heat generation and magnetic effects on unsteady ternary nanofluid flow over a dynamic wedge in porous media
Document Type
Article
Publication Date
2-1-2025
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.
Keywords
Ternary nanofluid, Unsteady MHD flow, Wedge flow, Viscous dissipation and Ohmic heating, Porous media, Heat generation/absorption
Divisions
Science,MathematicalSciences
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
Publication Title
Chinese Journal of Physics
Volume
93
Publisher
Elsevier
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS