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Heat transfer and irreversibility rate in MHD flow of a hybrid nanofluid with Newton boundary condition, slip flow, and nonlinear thermal radiation
Author(s) -
Puttaswmay Venkatesh,
Bijjanal Jayanna Gireesha,
Doranalu Onkarappa Soumya
Publication year - 2021
Publication title -
heat transfer
Language(s) - English
Resource type - Journals
eISSN - 2688-4542
pISSN - 2688-4534
DOI - 10.1002/htj.22031
Subject(s) - nanofluid , biot number , mechanics , hartmann number , nusselt number , grashof number , heat transfer , bejan number , brinkman number , magnetohydrodynamic drive , physics , thermal radiation , materials science , magnetohydrodynamics , boundary value problem , thermodynamics , magnetic field , reynolds number , turbulence , quantum mechanics
The magnetohydrodynamic flow of a water‐based Al 2 O 3 − Cu hybrid nanoliquid through a vertical microchannel has been investigated in the presence of collective effects, such as volume fraction of nanoparticle, suction/injection, magnetic field, temperature‐dependent heat source, hydrodynamic slip, and convective boundary conditions. The current mathematical formulations have been worked out numerically by using the fourth‐ and fifth‐order Runge–Kutta–Fehlberg scheme. The physical aspects of variation in velocity, temperature, entropy generation, and Bejan number with considered governing parameters have been discussed via corresponding graphs. The obtained numerical results demonstrated that radiation parameter and nanoparticle volume fraction reduce the thermal energy of the hybrid nanofluid. Moreover, entropy generation diminishes with the Hartmann number and permeability parameter, whereas it enhances with the Grashof number and Biot number.