Analysis of Entropy Generation in Natural Convection of Nanofluid inside a Square Cavity Having Hot Solid Block: Tiwari and Das’ Model

Entropy

Mikhail A. Sheremet³  Hakan F. Oztop⁵  Ioan Pop¹  Nidal Abu-Hamdeh²  Giulio Lorenzini⁴ 

[1] Department of Mathematics, Babeş-Bolyai University, 400084 Cluj-Napoca, RomaniaDepartment of Mechanical Engineering, Engineering Faculty, King Abdulaziz University, 21589 Jeddah, Saudi Arabia;Department of Theoretical Mechanics, Faculty of Mechanics and Mathematics, Tomsk State University, 634050 Tomsk, Russia;;Department of Theoretical Mechanics, Faculty of Mechanics and Mathematics, Tomsk State University, 634050 Tomsk, RussiaDepartment of Mechanical Engineering, Technology Faculty, Fırat University, 23100 Elazig, Turkey;

关键词: natural convection;    entropy generation;    nanofluid;    corner cooling;    hot centered obstacle;   

DOI  :  10.3390/e18010009

来源: mdpi

【 摘 要 】

A computational work has been performed in this study to investigate the effects of solid isothermal partition insertion in a nanofluid filled cavity that is cooled via corner isothermal cooler. Mathematical model formulated in dimensionless primitive variables has been solved by finite volume method. The study is performed for different geometrical ratio of solid inserted block and corner isothermal cooler, Rayleigh number and solid volume fraction parameter of nanoparticles. It is observed that an insertion of nanoparticles leads to enhancement of heat transfer and attenuation of convective flow inside the cavity.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.