Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7211097 | Alexandria Engineering Journal | 2017 | 9 Pages |
Abstract
Heat transfer, fluid flow and entropy generation due to combined buoyancy and thermocapillary forces in a 3D differentially heated enclosure containing Al2O3 nanofluid are carried out for different Marangoni numbers and different nanoparticles concentrations. The vector potential-vorticity formalism and the finite volume method are used respectively to formulate and to solve the governing equations and calculations were performed for Marangoni number from â103 to 103, volume fraction of nanoparticles from 0 to 0.2 and for a fixed Rayleigh number at 105. An intensification of the flow and an increase in heat transfer and of total entropy generation occur with the increase in nanoparticles volume fraction for all Marangoni numbers.
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Physical Sciences and Engineering
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Engineering (General)
Authors
Lioua Kolsi, Emtinene Lajnef, Walid Aich, Abdulaziz Alghamdi, Mohamed Ahmed Aichouni, Mohamed Naceur Borjini, Habib Ben Aissia,