Unsteady MHD chemically reactive double‐diffusive Casson fluid past a flat plate in porous medium with heat and mass transfer

Abstract

In this paper, an attempt has been made to analyze the effects of various parameters, such as Soret and Dufour effects, chemical reaction, magnetic field, porosity on the fluid flow, and heat and mass transfer of an unsteady Casson fluid flow past a flat plate. Convective boundary conditions in heat and mass transfer and slip constant on velocity have been taken into account for analysis. The governing equations of the model have been solved numerically using the MATLAB program bvp4c. The impact of various parameters of the model on the velocity, temperature, and concentration profiles has been analyzed through different graphs. To get an insight into the physical quantities of engineering interest, viz, skin friction, Sherwood number, and Nusselt number, their numerical values have been computed for various parameters. The range of the parameters used in numerical computations are Pr (0.3-0.8), ( β 0.5-1.5), M (1-5), A (0.5-1.5), L (0.1-0.9) 0 , D (0.2-4) f , Sr (0.3-6.3), and Sc (0.05-0.15). It has been noticed from the tabulated values that the skin friction gets enhanced with the increase in the thermal and solutal Grashof number,whereas its reverse effects have been observed with an increase in the Biot number. In limiting case, the present study is also compared with the available results in the literature.

A Study of MHD Casson Fluid Flow over a Permeable Stretching Sheet with Heat and Mass Transfer

“…Table 2. The present study is also compared (Table 1) with the available results of Das et al [16] and found to be in good agreement.…”

Slip boundary condition effect on double‐diffusive convection in a porous medium: Brinkman Model

“…A number of theoretical and empirical studies in the past few decades have focused on convection in the fluid layer with two or more stratified agencies, cf. [1][2][3][4][5][6][7][8][9][10] The convection caused by the selective absorption of radiation was shown experimentally by Krishnamurti 11 for a viscous fluid. In this experiment, a layer of water comprising a diluted solution of thymol blue (a pH indicator) is utilized.…”

Heat and mass transfer effect on an unsteady MHD radiative chemically reactive Casson fluid over a stretching sheet in porous medium

“…Beg et al 35 numerically explored the transport phenomena of MHD non‐Newtonian fluid past a horizontal cylinder: aerospace nanomaterial enrobing simulation. Recently, Das et al 36 studied the double‐diffusive Casson fluid past a flat plate, incorporating the slip constant and convective boundary conditions.…”