Impact of Joule Heating and Hydro-Magnetic Effects on Mixed Convection in Porous Cavity Using Lattice Boltzmann Method
Abstract
In the current paper, a comprehensive examination is carried out to investigate heat transmission under the influence of several factors that include magnetic field, moving lid, porous medium, and joule heating within a lid-driven cavity (LDC). The cavity features a moving lid, vertical walls with thermally insulated boundaries, and horizontal walls kept at uniform temperatures Th (bottom) and Tc (top). The objective of the study is to analyze mixed convective heat transfer behavior of the system using contour plots to visualize the flow and thermal pattern under the various considered parameters: Richardson numbers (0.01 ≤ Ri ≤ 10), and Joule heating parameters (0 ≤ J ≤ 10⁻⁵), Hartmann numbers (0 ≤ Ha ≤ 30), and Darcy numbers (0.001 ≤ Da ≤ 0.1). The lattice Boltzmann method (LBM) is applied to employ the governing transport equations. The Joule heating effects are critical in systems where internal heat generation must be controlled, such as in electrical systems or battery cooling, where resistive heating may either aid or hinder the desired thermal dynamics.
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References
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Copyright (c) 2025 C. Venkata Lakshmi, Anuradha Aravapalli, K. Venkatadri, O. Anwar Bég, V. Ramachandra Prasad

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