Boundary Layer Flow Past a Wedge Moving in a Nanofluid

The problem of steady boundary layer flow past a stretching wedge with the velocity uw(x) in a nanofluid and with a parallel free stream velocity ue(x) is numerically studied. It is assumed that at the stretching surface the temperature T and the nanoparticle fraction C take the constant values Tw a...

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Bibliographic Details
Published in:Mathematical problems in engineering 2013-01, Vol.2013 (2013), p.1-7
Main Authors: Khan, Waqar Ahmed, Pop, Ioan
Format: Article
Language:English
Subjects:
Boundary layer
Boundary layer flow
Brownian motion
Differential equations
Engineering
Finite difference method
Fluids
Heat transfer
Mathematical problems
Nanofluids
Nanoparticles
Ordinary differential equations
Partial differential equations
Prandtl number
Stretching
Thermal energy
Thermophoresis
Wedges
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Summary:The problem of steady boundary layer flow past a stretching wedge with the velocity uw(x) in a nanofluid and with a parallel free stream velocity ue(x) is numerically studied. It is assumed that at the stretching surface the temperature T and the nanoparticle fraction C take the constant values Tw and Cw, respectively. The ambient values (inviscid fluid) of T and C are denoted by T∞ and C∞, respectively. The boundary layer governing partial differential equations of mass, momentum, thermal energy, and nanoparticles recently proposed by Kuznetsov and Nield (2006, 2009), are reduced to ordinary differential equations along with the corresponding boundary conditions. These equations are solved numerically using an implicit finite-difference method for some values of the governing parameters, such as β, λ, Pr, Le, Nb, and Nt, which are the measure of the pressure gradient, moving parameter, Prandtl number, Lewis number, the Brownian motion parameter, and the thermophoresis parameter, respectively.
ISSN:1024-123X
1563-5147
DOI:10.1155/2013/637285