Three-dimensional numerical simulation of ferrofluid magnetoconvection in cubical enclosure heated with an inner spherical hot block

Boubaker Dhibi and Brahim Ben-Beya ()
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Boubaker Dhibi: University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Physics of Fluids, 2092 El Manar 2, Tunis, Tunisia
Brahim Ben-Beya: University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Physics of Fluids, 2092 El Manar 2, Tunis, Tunisia

International Journal of Modern Physics C (IJMPC), 2021, vol. 32, issue 03, 1-23

Abstract: In this study, three-dimensional computational analysis is performed to investigate the magnetoconvection of ferrofluid (Fe3O4-water) within a cubical enclosure heated by an inner spherical hot block. The ferrofluid, considered as a working fluid, is modeled as a single-phase fluid. The inner spherical block is put at high temperature while all the remaining walls of the enclosure are exposed to low temperature. Two radii values (rs=0.1 and 0.2) of the inner hot sphere are examined. Governing equations with corresponding boundary conditions are solved numerically applying a second-order accurate finite volume method on a staggered grid system, using an accelerated multigrid model. Simulations are carried out based on various flow-governing parameters such as Rayleigh number (103Keywords: Magnetoconvection; ferrofluids; 3D-simulation; cubic enclosure; inner sphere (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S012918312150042X

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