Journal
HEAT TRANSFER-ASIAN RESEARCH
Volume 47, Issue 1, Pages 54-71Publisher
WILEY
DOI: 10.1002/htj.21290
Keywords
heat generation; absorption; non-linear stretching surface; porous medium; Sisko nanofluid
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This work is focused on steady flow and heat transfer in a porous medium saturated with a Sisko nanofluid (non-Newtonian power-law) over a nonlinearly stretching sheet in the presence of heat generation/absorption. Nonlinear PDEs are transformed into a system of coupled nonlinear ODEs with related boundary conditions using similarity transformation. The reduced equations are then solved numerically using the Runge-Kutta-Fehlberg fourth-fifth order method (RKF45) with Maple 14.0 software. The solutions depend on the power-law index n and the effect of pertinent parameter such as the Brownian motion parameter, thermophoresis parameter, Lewis number, the permeability, and the heat generation/absorption on the dimensionless velocity, temperature, and nanoparticles volume fraction and also on the skin friction, local Nusselt, and Sherwood numbers are produced for values of the influence parameter. A rapprochement of the numerical results of the actual study with formerly published data detected an excellent agreement.
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