Untitled

Section: Introductionmentioning

confidence: 99%

Analysis of MHD Transient Free Convection Flow of a Newtonian Fluid Past an Infinite Vertical Porous Plate

Raju¹,

Umamaheswar²,

Varma³

2015

“…Natural convective heat transfer from narrow vertical plates which have a uniform surface heat flux has studied with different edge conditions with special attention on Prandtl number examined by Patrick and Paul (2010). The simultaneous effects of heat and mass transfer, is concerned with a numerical study of transient natural convection flow past an impulsively started semiinfinite vertical plate subjected to uniform heat and diffusion of a chemically reactive species examined by Muthucumaraswamy and P (2002). Hossain et al (2001) studied the influence of fluctuating surface temperature and concentration on natural convection flow from a vertical flat plate.…”

Section: Introductionmentioning

confidence: 99%

Chemical Reaction and Radiation Effects on Unsteady MHD Micropolar Fluid Flow Over a Vertical Plate With Variable Temperature

Ayano¹,

Mathunjwa²

2016

This paper presents a study of the Magnetohydrodynamic flow of incompressible micropolar fluid past an infinite vertical porous plate with combined heat and mass transfer. The plate oscillate harmonically in its own plane and the temperature raised linearly with respect to time. Numerical calculations are carried out for different values of dimensionless parameters and an analysis of the results shown graphically and in table form. It is found that velocity and microrotation influenced appreciatively with parameters like radiation, magnetic, chemical reaction and coupling numbers. It is also noted that microrotation highly influenced by the magnetic parameters. The effects of some parameters on the skin friction, Nusselt and Sherwood numbers studied.

“…Das et al(1994) have studied the effects of mass transfer on flow past an impulsively started infinite vertical plate with constant heat flux and chemical reaction. Muthukumaraswamy (2003) has studied the effects of reaction on a long surface with suction. Recently Gnaneswar (2008) has studied radiation and mass transfer on an unsteady two-dimensional laminar convective boundary layer flow of a viscous incompressible chemically reacting fluid along a semi-infinite vertical plate with suction by taking into account the effects of viscous dissipation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Reaction and Radiation on Unsteady Convective Heat and Mass Transfer Flow of a Viscous Fluid in a Vertical Wavy Channel With Oscillatory Flux and Heat Sources

Kamalakar¹,

Rao²,

Rao³

2016

In this paper we discuss the effect of chemical reaction and thermal radiation on unsteady free convective heat and mass transfer flow through a porous medium in a vertical wavy channel. The unsteadiness in the flow is due to the oscillatory flux in the flow region. The coupled equations governing the flow, heat and mass transfer have been solved by using a perturbation technique with the slope  of the wavy wall as the perturbation parameter. The expression for the velocity, the temperature, the concentration, the rate of heat and mass transfer are derived and are analyzed for different variations of the governing parameters G, R, M, D -1 , , N, N1, ,  , k, x and t.