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INFLUENCE OF EXTERNAL MAGNETIC SOURCE ON NANOFLUID TREATMENT IN A POROUS CAVITY

卷 22, 册 12, 2019, pp. 1475-1491
DOI: 10.1615/JPorMedia.2019024518
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摘要

Magnetic nanofluid transportation under the effect of a nonuniform magnetic field in a porous cavity is analyzed. To obtain the nanofluid thermal conductivity, various shapes of nanoparticles are utilized. Control volume based finite element method (CVFEM) is employed to solve the vorticity-stream function governing equations. Graphs are depicted for various values of Darcy number (Da), radiation parameter (Rd), Fe3O4-water volume fraction (φ), and Rayleigh (Ra) and Hartmann (Ha) numbers. The results demonstrate that augmenting the Hartmann number results in the decrease in velocity of nanofluid and heat transfer rate. According to the results, using platelet-shaped nanoparticles results in the most significant heat transfer rate. The radiation parameter has a direct relationship with the Nusselt number.

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对本文的引用
  1. Khan Sami Ullah, Bhatti Muhammad Mubashir, Riaz Arshad, A revised viscoelastic micropolar nanofluid model with motile micro‐organisms and variable thermal conductivity, Heat Transfer, 49, 6, 2020. Crossref

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