Abstract
In the present study, an analysis is carried out to study the variable viscosity and chemical reaction effects on the flow, heat, and mass transfer characteristics in a viscous fluid over a semi-infinite vertical porous plate. The governing boundary layer equations are written into a dimensionless form by similarity transformations. The transformed coupled nonlinear ordinary differential equations are solved numerically by using the shooting method. The effects of different parameters on the dimensionless velocity, temperature, and concentration profiles are shown graphically. In addition, tabulated results for the local skin-friction coefficient, the local Nusselt number, and the local Sherwood number are presented and discussed.
Highlights
In many transport processes existing in nature and in industrial applications in which heat and mass transfer is a consequence of buoyancy effects caused by diffusion of heat and chemical species
The aim of this work is to study the effects of chemical reaction and variable viscosity on flow, heat, and mass transfer on a semi-infinite vertical plate with suction
The results show that the skin-friction coefficient, the Nusselt number and the Sherwood number increase as θr or fw increases
Summary
In many transport processes existing in nature and in industrial applications in which heat and mass transfer is a consequence of buoyancy effects caused by diffusion of heat and chemical species. The study of such processes is useful for improving a number of chemical technologies, such as polymer production and food processing. The effect of the presence of foreign mass on the free convection flow past a semi-infinite vertical plate was studied by Gebhart and Pera [1]. The aim of this work is to study the effects of chemical reaction and variable viscosity on flow, heat, and mass transfer on a semi-infinite vertical plate with suction. The order of chemical reaction in this work is taken as first-order reaction
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