Influence of Baffle Size and Position on Natural Convective Heat Transport in a Skewed Cavity by Finite Element Method

This present paper explores natural convection heat removal performance in accordance with the variation of the baffle size and position in a skewed cavity. The dimensionless governing equations will be solved by Galerkin weighted residual technique of finite element method. The influence of Rayleigh number (10^3≤𝑅𝑎≤10^6), baffle size (L = 0.20, 0.35 and 0.50) and baffle position (B = 0.25, 0.50 and 0.75) in concerning a fluid Pr = 0.71. Comparisons between the outcome of this work and previously published have been produced to examine the reliability and consistency of the data. The results of the simulation are represented by streamlines, isotherms, local and average Nusselt number, average surface temperature and baffle effectiveness. The results demonstrated that as the Rayleigh number increases, the heat removal performance rate continues to develop in the present study. Also, the results indicate that the heat transfer rate decreased when raising gradually the baffle length. Baffles can significantly improve the mixing of fluid inside the enclosure, which can mean reductions in reaction times and operating costs, along with increases in heat transfer and efficiency.

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