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Numerical study on mixed convective flow of water‐based magnetite nanofluid through a wavy channel containing porous blocks under the effect of an oscillating magnetic field
Author(s) -
Job Victor M.,
Gunakala Sreedhara Rao
Publication year - 2021
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.202000254
Subject(s) - nanofluid , hartmann number , thermophoresis , mechanics , materials science , magnetohydrodynamic drive , magnetohydrodynamics , pressure drop , magnetic field , heat transfer , strouhal number , thermodynamics , physics , turbulence , reynolds number , quantum mechanics
In this paper, the convective flow of magnetite (Fe 3 O 4 )‐water nanofluid through a wavy channel containing porous blocks in the presence of a non‐uniform oscillating magnetic field with magnetohydrodynamic (MHD) and ferrohydrodynamic (FHD) effects is considered. This magnetic field is produced by two current‐carrying wires, which are placed at fixed positions on the outside of the channel. In the present study, we use a two‐phase model that considers the effects of thermophoresis and Brownian motion on the concentration of nanoparticles within the fluid. The associated system of partial differential equations is solved using the mixed finite element method withP 2 − P 1Taylor‐Hood elements and the effects of time t , Strouhal number S t , Hartmann number H a , magnetic number M n , solid volume fraction ϕ 0 , nanoparticle diameter d s on the fluid flow, heat transfer, concentration distribution and pressure drop within the channel are investigated.