NUMERICAL STUDY OF THE EFFECT OF A NANOFLUID WITH NANOPARTICLES OF NONUNIFORM SIZE ON NATURAL CONVECTION IN AN INCLINED ENCLOSURE

Sina Niazi; Mehrdad Naderi  Beni

doi:10.1615/NanoSciTechnolIntJ.v8.i4.10

Nanoscience and Technology: An International Journal

Editor chefe: Sergey A. Lurie (open in a new tab)

Executive Secretary: Yulia N. Karnet (open in a new tab)

Publicou 4 edições por ano

ISSN Imprimir: 2572-4258

ISSN On-line: 2572-4266

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NUMERICAL STUDY OF THE EFFECT OF A NANOFLUID WITH NANOPARTICLES OF NONUNIFORM SIZE ON NATURAL CONVECTION IN AN INCLINED ENCLOSURE

Volume 8, Edição 4, 2017, pp. 261-308

DOI: 10.1615/NanoSciTechnolIntJ.v8.i4.10

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Sina Niazi
Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588-0526, USA

Mehrdad Naderi Beni
Department of Mechanical Engineering Faculty of Engineering, University of Kashan Kashan, Iran

RESUMO

Heat transfer and fluid flow with natural convection in an inclined cavity with variable size Al₂O₃ nanoparticles are studied. Moreover, the influence of the nonuniform size of nanoparticles, inclination angle, nanoparticle volume fraction, Prandtl number, and of Grashof number on heat transfer rates is examined. The angle of inclination of the cavity between 0° to 120° is considered. Computations show that the average Nusselt number increases with the Rayleigh number and that the average Nusselt number decreases as the nanoparticle mean diameter increases at all angles except 90°. The results show that the change in the nanoparticle size and angle of inclination affects the natural convection heat transfer in a rectangular cavity.

Palavras-chave: nanofluid, natural convection, enclosure, inclination angle

CITADO POR

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