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Open Access Research

Thermodiffusion effects on magneto-nanofluid flow over a stretching sheet

Faiz G Awad, Precious Sibanda* and Ahmed A Khidir

Author Affiliations

School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg, 3209, South Africa

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Boundary Value Problems 2013, 2013:136  doi:10.1186/1687-2770-2013-136

Published: 24 May 2013

Abstract

We study the effect of thermophoresis on boundary layer magneto-nanofluid flow over a stretching sheet. The model includes the effects of Brownian motion and cross-diffusion effects. The governing partial differential equations are transformed to a system of ordinary differential equations and solved numerically using a spectral linearisation method. The effects of the magnetic influence number, the Prandtl number, Lewis number, the Brownian motion parameter, thermophoresis parameter, the modified Dufour parameter and the Dufour-solutal Lewis number on the fluid properties as well as on the heat, regular and nano mass transfer coefficients are determined and shown graphically.