Effects of chemical reaction, heat and mass transfer on boundary layer flow over a porous wedge with heat radiation in the presence of suction or injection

Abstract

The effect of chemical reaction, heat and mass transfer on boundary layer flow over a porous wedge with heat radiation has been studied in the presence of suction or injection. An approximate numerical solution for the steady laminar boundary-layer flow over a wall of the wedge in the presence of species concentration and mass diffusion has been obtained by solving the governing equations using numerical technique. The fluid is assumed to be viscous and incompressible. Numerical calculations are carried out for different values of dimensionless parameters and an analysis of the results obtained shows that the flow field is influenced appreciably by the chemical reaction, the buoyancy ratio between species and thermal diffusion and suction/injection at wall surface. Effects of these major parameters on the transport behaviors are investigated methodically and typical results are illustrated to reveal the tendency of the solutions. Representative results are presented for the velocity, temperature, and concentration distributions, as well as the skin friction, rate of heat transfer and mass transfer. Comparisons with previously published works are performed and excellent agreement between the results is obtained.

Melting and Radiation Effects on Mixed Convection Boundary Layer Viscous Flow Over a Vertical Plate in Presence of Homogeneous Higher Order Chemical Reaction

“…Considerable literature can be found over combined heat and mass transfer in free convection boundary layer flow over heated surfaces along different geometries. Few researchers (e.g., Gebhart et al, 1989;Kandasamy et al, 2006;Chaudhary et al, 2006), investigated the impact of radiation on heat transfer in MHD mixed convection flow with viscous dissipation and ohmic heating effects. A problem of analytical conjugate phenomena of heat and mass transfer was examined by Noor et al (2012).…”

MHD mixed flow of unsteady convection with radiation over a vertical porous plate: Lie group symmetry analysis

“…A systematic simulation for the mass transfer effect on the two-dimensional unsteady MHD free convective flow past a vertical porous plate with variable suction were investigated by Ramana Kumari et al [13]. Kandasamy et al [6] reported the effects of thermal and mass transfer diffusion in MHD mixed convective flow over a porous wedge with heat radiation and considering suction/injection. The hydromagnetic unsteady mixed convection flow past porous plate sop in porous media was studied by Sharma et al [16].…”

Influence of Visco-Elasticity on MHD Heat and Mass Transfer Flow through a Porous Medium Bounded By an Inclined Surface with Chemical Reaction

“…Bhuvaneswari et al [8] have explained exact analysis of radiation convective heat and mass transfer flow over an inclined plate in a porous medium. Kandasamy and Devi [9] have presented the effects of chemical reaction, heat and mass transfer on non-linear laminar boundary-layer flow over a wedge with suction or injection. Prakash and Ogulu [11] have discussed the unsteady two-dimensional flow of a radiating and chemically reacting fluid with time dependent suction.…”