Natural convection within water-zno nanofluid-filled hemispherical enclosure with a cubic electronic device

Show simple item record Haddad, O. en Bairi, A. en Alilat, N. en Bauzin, J.G. en Laraqi, N. en 2017-09-19T12:48:48Z 2017-09-19T12:48:48Z 2017 en
dc.description Papers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 . en
dc.description.abstract This work qualifies and quantifies the nanofluidic natural convective phenomena occurring in a hemispherical enclosure used for electronics applications. This cavity consists of a disk thermally insulated on its rear face, an active cube centered on the disk which generates a constant heat flux and an isothermal dome. The disc of the cavity remains horizontal while its dome is oriented either upwards or downwards. The considered nanofluid is a mixture of water with metallic ZnO nanoparticles. In order to examine the influence of these nanoparticles on the natural convective heat transfer, three values of the volume fraction considered: 0% (pure water), 1% and 5%. The dimensionless governing system of the problem under consideration is solved by means of the control volume method in combination with the SIMPLE algorithm. The structured mesh is composed of triangular surfacic elements and tetrahedral in the volumic domain. Temperature and velocity distributions are presented for some configurations and convective heat transfer is examined for all processed ones. The natural convective heat transfer is quantified by means of Nusselt-Rayleigh-Prandtl correlations. en
dc.description.sponsorship International centre for heat and mass transfer. en
dc.description.sponsorship American society of thermal and fluids engineers. en
dc.format.extent 5 pages en
dc.format.medium PDF en
dc.language.iso en en
dc.publisher HEFAT en
dc.rights University of Pretoria en
dc.subject Water-zno nanofluid-fluid hemispherical enclosure en
dc.subject Cubic electronic device en
dc.subject Natural convection en
dc.title Natural convection within water-zno nanofluid-filled hemispherical enclosure with a cubic electronic device en
dc.type Presentation en

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