Journal
SYMMETRY-BASEL
Volume 11, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/sym11030378
Keywords
Permeable walls; suction; injection; nanofluids; porous medium; mixed convection; magnetohydrodynamic (MHD)
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Funding
- Deanship of Scientific Research at Princess Nourah bint Abdulrahman University [(sic)]
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This paper introduces a mathematical model of a convection flow of magnetohydrodynamic (MHD) nanofluid in a channel embedded in a porous medium. The flow along the walls, characterized by a non-uniform temperature, is under the effect of the uniform magnetic field acting transversely to the flow direction. The walls of the channel are permeable. The flow is due to convection combined with uniform suction/injection at the boundary. The model is formulated in terms of unsteady, one-dimensional partial differential equations (PDEs) with imposed physical conditions. The cluster effect of nanoparticles is demonstrated in the C2H6O2, and H2O base fluids. The perturbation technique is used to obtain a closed-form solution for the velocity and temperature distributions. Based on numerical experiments, it is concluded that both the velocity and temperature profiles are significantly affected by phi. Moreover, the magnetic parameter retards the nanofluid motion whereas porosity accelerates it. Each H2O-based and C2H6O2-based nanofluid in the suction case have a higher magnitude of velocity as compared to the injections case.
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