article · Defect and diffusion forum/Diffusion and defect data, solid state data. Part A, Defect and diffusion forum
This article presents a comprehensive numerical study of natural convection in a water-filled triangular cavity using the multi-relaxation time lattice Boltzmann method (MRT-LBM). The main objective of this study is to thoroughly analyze the influence of the heated chip's position along the left wall and the Rayleigh number on crucial aspects such as isotherms, streamlines, velocity, and temperature profiles, as well as the Nusselt number. In this setup, the hypotenuse wall is kept completely cold, while the other parts of the left wall and the bottom wall are adiabatic. Simulations are conducted for three different positions of the heated chip, with Rayleigh numbers, Ra, set at 10 3 and 10 5 . The results of these investigations reveal that the heating position plays a crucial role in optimizing control, providing significant implications for various applications. Validation results demonstrate satisfactory agreement with existing literature, reinforcing the robustness and reliability of our numerical approach based on MRT.
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DOI: 10.4028/p-tl5me3
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