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Entropy analysis of Powell–Eyring hybrid nanofluid including effect of linear thermal radiation and viscous dissipation by Asim Aziz; Wasim Jamshed; Taha Aziz; Haitham M. S. Bahaidarah; Khalil Ur Rehman is a Materials Science article available to read on EtoBox.

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Hybrid nanofluids are introduced as heat transfer fluids with greater surface stability, diffusion and dispersion capabilities compared to traditional nanofluids. In this work, flow, convective heat transport and volumetric entropy generation in Powell-Eyring hybrid nanofluid are investigated. Hybrid nanofluid occupies the space over the uniform horizontal porous stretching surface with velocity slip at the interface. Effect of viscous dissipation and linear thermal radiation are also included in the simplified model. Mathematical equations for conservation of mass, momentum, energy and entropy are simplified under assumptions of boundary layer flow of Powell-Eyring hybrid nanofluid. Similarity solutions are obtained by transformation of governing partial differential equations to ordinary differential equations, using similarity variables. Keller box finite difference scheme is then adopted to find the approximate solutions of reduced ordinary differential equations. Numerical computations are performed for alumina-copper water ( Al 2 O 3 -Cu/H 2 O ) hybrid nanofluid and conventional copper water ( Cu-H 2 O ) nanofluid. Graphs are produced for velocity, temperature and entropy pro

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Author

Asim Aziz; Wasim Jamshed; Taha Aziz; Haitham M. S. Bahaidarah; Khalil Ur Rehman

Publisher

Springer Science and Business Media LLC

Published

2020

Language

EN

Field

Materials Science (Physical Sciences)