Mixed convection boundary layer flow near the lower stagnation point of an isothermal solid sphere in a nanofluid

Leony Tham, and Roslinda Nazar, and Ioan Pop, (2013) Mixed convection boundary layer flow near the lower stagnation point of an isothermal solid sphere in a nanofluid. JP Journal of Heat and Mass Transfer, 7 (2). 195 -209. ISSN 0973-5763

Official URL: http://www.pphmj.com/abstract/7625.htm

Abstract

In this paper, the problem of steady mixed convection boundary layer flow in a nanofluid near the lower stagnation point of a solid sphere in a stream flowing vertically upwards has been studied for both cases of heated and cooled spheres. The resulting system of nonlinear partial differential equations is solved numerically using an efficient implicit finite-difference scheme known as the Keller-Box method. Three different types of nanoparticles considered are copper Cu, alumina and titania by using water-based fluid with Prandtl number at 6.2. Numerical solutions are obtained for the velocity and temperature profiles with various values of the nanoparticle volume fraction j and the mixed convection parameter l.

Item Type: Non-Indexed Article
Keywords: Boundary layer, lower stagnation point, mixed convection, nanofluid, numerical solution, solid sphere.
Faculty: Faculty of Agro - Based Industry
Deposited By: En. Pahmi Abdullah
Date Deposited: 23 May 2017 06:32
Last Modified: 23 May 2017 06:32
URI: http://umkeprints.umk.edu.my/id/eprint/5326

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