期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 220, 期 -, 页码 718-725出版社
ELSEVIER
DOI: 10.1016/j.molliq.2016.05.005
关键词
Nanofluid; Chemical reaction; Heat generation; Exponentially stretching sheet; Porous media
An analysis has been carried out to study a problem of the chemical reaction and heat generation or absorption effects on MHD mixed convective boundary layer flow of a nanofluid through a porous medium due to an exponentially stretching sheet. Nonlinear partial differential equations are converted into a set of ordinary differential equations by similarity transformations. The transformed equations are solved numerically by using an efficient numerical shooting technique with a fourth-fifth order Runge-Kutta method scheme. The results corresponding to the dimensionless the velocity, temperature, concentration profiles and the reduced Nusselt number, Sherwood number and skin friction coefficient are displayed graphically for various pertinent parameters. It was found that Nusselt number Re(x)(-1/2)Nu(x) is a decreasing function of the heat generation or absorption parameter Q and the chemical reaction parameter chi, but Sherwood number Re(x)(-1/2)Sh(x) is an increasing function of the heat generation or absorption parameter Q and chemical reaction parameter chi. The skin friction coefficient Rex-1/2Cf is an increasing function of heat generation or absorption parameter Q while decreasing function of the chemical reaction parameter chi. Comparison with previously published work is performed and excellent agreement is observed. (C) 2016 Elsevier B.V. All rights reserved.
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