Title

Radiation effects on mixed convection about a cone embedded in a porous medium filled with a nanofluid

Authors

Authors

A. J. Chamkha; S. Abbasbandy; A. M. Rashad;K. Vajravelu

Comments

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Abbreviated Journal Title

Meccanica

Keywords

Mixed convection; Nanofluid; Thermophoresis; Brownian diffusion; Thermal; radiation; ENTIRE REGIME; NATURAL-CONVECTION; HEAT-TRANSFER; MASS-TRANSFER; TRUNCATED CONE; FLOW; WEDGE; TEMPERATURE; SUSPENSIONS; VWT/VWC; Mechanics

Abstract

The problem of steady, laminar, mixed convection boundary-layer flow over a vertical cone embedded in a porous medium saturated with a nanofluid is studied, in the presence of thermal radiation. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis with Rosseland diffusion approximation. The cone surface is maintained at a constant temperature and a constant nanoparticle volume fraction. The resulting governing equations are non-dimensionalized and transformed into a non-similar form and then solved by Keller box method. A comparison is made with the available results in the literature, and our results are in very good agreement with the known results. A parametric study of the physical parameters is made and a representative set of numerical results for the local Nusselt and Sherwood numbers are presented graphically. Also, the salient features of the results are analyzed and discussed.

Journal Title

Meccanica

Volume

48

Issue/Number

2

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

275

Last Page

285

WOS Identifier

WOS:000317693500002

ISSN

0025-6455

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