Object structure

Creator:

Zigta, Binyam ; Koya, P.R.

Contributor:

Jurczak, Paweł - red.

Title:

The effect of MHD on free convection with periodic temperature and concentration in the presence of thermal radiation and chemical reaction

Group publication title:

IJAME, volume 22 (2017)

Subject and Keywords:

MHD ; unsteady free convection ; thermal radiation ; chemical reaction ; Couette porous plates

Abstract:

This paper studies the effect of magneto hydrodynamics on unsteady free convection between a pair of infinite vertical Couette plates. The temperature of the plates and concentration between the plates vary with time. Convection between the plates is considered in the presence of thermal radiation and chemical reaction. The solution is obtained using perturbation techniques. These techniques are used to transform nonlinear coupled partial differential equations to a system of ordinary differential equations. The resulting equations are solved analytically. The solution is expressed in terms of power series with some small parameter. ; The effect of various parameters, viz., velocity, temperature and concentration, has been discussed. Mat lab code simulation study is carried out to support the theoretical results. The result shows that as the thermal radiation parameter "R" increases, the temperature decreases near the moving porous plate while it approaches to a zero in the region close to the boundary layer of the stationary plate. Moreover, as the modified Grashof number, i.e., based on concentration difference, increases, the velocity of the fluid flow increases hence the concentration decreases. An increase in both the chemical reaction parameter and Schmidt number results in decreased concentration.

Publisher:

Zielona Góra: Uniwersytet Zielonogórski

Date:

2017

Resource Type:

artykuł

Format:

application/pdf

DOI:

10.1515/ijame-2017-0068

Pages:

1059-1073

Source:

IJAME, volume 22, number 4 (2017)

Language:

eng

License:

CC 4.0

License CC BY-NC-ND 4.0:

click here to follow the link

Rights:

Biblioteka Uniwersytetu Zielonogórskiego