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Latin American applied research

versión impresa ISSN 0327-0793


EL-KABEIR, S. M. M.. Soret and dufour effects on heat and mass transfer due to a stretching cylinder saturated porous medium with chemically-reactive species. Lat. Am. appl. res. [online]. 2011, vol.41, n.4, pp.331-337. ISSN 0327-0793.

The diffusion-thermo and thermal-diffusion effects on heat and mass transfer by boundary layer flow over a stretching cylinder embedded in a porous medium have been studied numerically in the a presence of chemical reaction effect. The governing nonlinear partial differential equations are transformed into a set of coupled ordinary differential equations, which are solved numerically by using Runge-Kutta method with shooting techniques. Numerical results are obtained for the velocity, temperature and concentration distributions, as well as the skin friction coefficient, local Nusselt number and local Sherwood number for several values of the parameters, namely, the Reynolds number, Darcy number, chemical reaction parameter, Dufour and Soret numbers. The obtained results are presented graphically and the physical aspects of the problem are discussed.

Palabras clave : Heat and Mass Transfer; Porous Medium; Stretching Cylinder; Dufour and Soret Effects; Chemical Reaction.

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