Soret and Radiation Effects on an Unsteady Flow of a Casson Fluid Through Porous Vertical Channel With Expansion and Contraction

Abstract

The present paper deals with the thermo physical properties of a Casson fluid through an oscillating vertical wall embedded through porous medium under the influence transverse magnetic field, radiation, constant heat source and first order chemical reaction. The radiative heat loss is modelled by using Rosseland approximation. Similarity variables were used to convert the partial differential equations into ordinary differential equation. The transformed ordinary differential equations are solved numerically using Runge-Kutta-Fehlberg method with shooting technique. In order to get perfect perception of the flow pattern we obtain the graphs of axial velocity, temperature and concentrations profiles for various governing parameters viz. Casson parameter, Wall dilation ratio, Reynolds number, Grashoff numbers, Magnetic field parameter, Porous parameter, Radiation parameter, Prandtl number, Heat source parameter, Schmidt's number, Soret number, Chemical reaction parameter. Influence of Skin friction coefficient, Nusselt number, and Sherwood number on both walls are discussed and presented through tabular form.

Analysis of Arrhenius Activation Energy in Electrically Conducting Casson Fluid Flow Induced Due to Permeable Elongated Sheet With Chemical Reaction and Viscous Dissipation

“…Fazal Mabood et al (2019) focused porous medium in Casson fluid flow under thermal radiation. Sulochana et al (2019) elaborately explained hall current result in Casson fluid flow Vijaya et al (2018Vijaya et al ( , 2019Vijaya et al ( , 2020 Dharmaiah et al (2018) explored MHD fluid flow over a semi-infinite flat plate with absorption and heat source.…”

Laplace Transform Solution of Unsteady MHD Jeffry Fluid Flow Past Vertically Inclined Porus Plate

“…A good number of people have done work on MHD flows. Vijaya N et al(2018) thermo physical properties of a Casson fluid through an oscillating vertical wall embedded through porous medium. Vedavathi N et al(2017) investigated the radiation effects, of MHD free convective chemically reacting nano fluid over a semi infinite vertical plate.…”

Steady MHD Casson Ohmic heating and viscous dissipative fluid flow past an infinite vertical porous plate in the presence of Soret, Hall, and ion‐slip current

“…The conglomeration of heat and mass transfer problems with chemical reactions are widely found in the fields of manufacturing of ceramics, polymer production, synthetics fibers, and application of isothiocyanate components in preparing products such as food or drink products, pharmaceutical compositions, agricultural products, skin or hair products, and so on. Vijaya et al 19 analyzed chemical reaction as well as thermophysical properties of MHD Casson fluid through an oscillating nonparallel wall enclosed in a permeable cahannel and effect of transverse magnetic field and radiation in the presence of a constant heat source. In this paper, the governing equations were solved by using the R‐K Fehlberg method by means of a shooting technique.…”