Journal
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
Volume 71, Issue -, Pages 22-29Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijnonlinmec.2015.01.005
Keywords
Nanofluid; Axisymmetric flow; Non-linear stretching sheet; Optimal homotopy analysis method; Keller-Box method
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This article reports the laminar axisymmetric flow of nanofluid over a non-linearly stretching sheet. The model used for nanofluid contains the simultaneous effects of Brownian motion and thermophoretic diffusion of nanoparticles. The recently proposed boundary condition is considered which requires the mass flux of nanopartides at the wall to be zero. Analytic solutions of the arising boundary value problem are obtained by optimal homotopy analysis method. Moreover the numerical solutions are computed by Keller-Box method. Both the solutions are found in excellent agreement. The behavior of Brownian motion on the fluid temperature and wall heat transfer rate is insignificant. Further the nanoparticle volume fraction distribution is found to be negative near the vicinity of the stretching sheet. (C) 2015 Elsevier Ltd. All rights reserved.
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