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Published in:
2021 | OriginalPaper | Chapter
Heat Transfer and Entropy Generation for Natural Convection in a Cavity with Inner Obstacles
Authors : Jamal Baliti, Mohamed Hssikou, Youssef Elguennouni, Ahmed Moussaoui, Mohammed Alaoui
Published in: Proceedings of the 2nd International Conference on Electronic Engineering and Renewable Energy Systems
Publisher: Springer Singapore
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Abstract
Heat transfer and entropy generation for natural convection of a fluid inside a square cavity with inner adiabatic bodies, has been studied numerically with finite difference method. Calculations have been made for Rayleigh numbers \(Ra=10^{3}\), \(10^{4}\) and \(5.10^{4}\) for two obstacles with a constant height \(h=1/4\). Results are presented as local Nusselt number, streamlines and isotherm contours. The results reveal the effects of relevant parameters on thermal fields, the fluid flow and heat transfer in the cavity. The outcome shows that the heat transfer rates generally rise with the increase of Rayleigh number. The entropy generation is higher at locations with large temperature gradients.