Effects of Diffusive Heating, Radiation Absorption and Joule Heating on MHD Mixed Convection Rotating Flow past an Inclined Porous Plates under the Influence of Hall Current and Thermal Radiation

Kanchi, Subhan; Gaddala, Prabhakara Rao; Gurram, Shobalatha

doi:10.22075/jhmtr.2024.32228.1494

Effects of Diffusive Heating, Radiation Absorption and Joule Heating on MHD Mixed Convection Rotating Flow past an Inclined Porous Plates under the Influence of Hall Current and Thermal Radiation

Document Type : Full Length Research Article

Authors

Subhan Kanchi ¹

Prabhakara Rao Gaddala ²

Shobalatha Gurram ¹

¹ Department of Mathematics, Sri Krishnadevaraya University, Anantapuram-515003, Andhra Pradesh, India

² Department of Mathematics, Government Degree College (A), Anantapuram-515001, Andhra Pradesh, India

10.22075/jhmtr.2024.32228.1494

Abstract

In this study, we examined the effects of diffusive heating, Hall current, and radiation absorption on the magnetohydrodynamic (MHD) mixed convective flow of a viscous, incompressible, electrically conducting Casson fluid along an inclined porous plate. This flow occurs in the presence of thermal radiation and chemical reactions. Using a perturbation approach, we derived solutions for the non-dimensional equations. Within the boundary layer, we analyzed how various non-dimensional factors influence the velocities, temperatures, and concentrations of the fluid. Additionally, computational analyses were conducted to explore the impact of relevant factors on the shear stress rate and the rates of heat and mass transfer. As the Hall and radiation absorption parameters increase, the velocity and temperature of the fluid also increase. Conversely, when the diffusive heating parameters increase, the fluid velocity and temperature exhibit opposite trends. Additionally, as thermal radiation increases, the temperature tends to decrease. Increasing the permeability factor reduces the skin friction coefficient, but increasing the thermal and mass Grashof numbers has the opposite effect. A higher Prandtl number leads to an increase in the Nusselt number. Lastly, the Sherwood number decreases as the amount of absorbed radiation increases.

Keywords

Diffusive heating

Radiation absorption

Hall current

Subjects

Computational Heat transfer

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