Abstract This paper is concerned with the entropy generation in a magnetohydrodynamic (MHD)
pseudo-plastic nanofluid flow through a porous channel with convective heating. Three different
types of nanoparticles, namely copper, aluminum oxide and titanium dioxide are considered with
pseudo-plastic carboxymethyl cellulose (CMC)–water used as base fluids. The governing equations
are solved numerically by shooting technique coupled with Runge–Kutta scheme. The effects of the
pertinent parameters on the fluid velocity, temperature, entropy generation, Bejan number as well
as the shear stresses at the channel walls are presented graphically and analyzed in detail. It is possible
to determine optimum values of magnetic parameter, power-law index, Eckert number and
Boit number which lead to a minimum entropy generation rate.
ª 2015 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V. This is an
open access article under the CC BY-NC-ND license
Abstract This paper is concerned with the entropy generation in a magnetohydrodynamic (MHD)pseudo-plastic nanofluid flow through a porous channel with convective heating. Three differenttypes of nanoparticles, namely copper, aluminum oxide and titanium dioxide are considered withpseudo-plastic carboxymethyl cellulose (CMC)–water used as base fluids. The governing equationsare solved numerically by shooting technique coupled with Runge–Kutta scheme. The effects of thepertinent parameters on the fluid velocity, temperature, entropy generation, Bejan number as wellas the shear stresses at the channel walls are presented graphically and analyzed in detail. It is possibleto determine optimum values of magnetic parameter, power-law index, Eckert number andBoit number which lead to a minimum entropy generation rate.ª 2015 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V. This is anopen access article under the CC BY-NC-ND license
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