Effects of Thermal Radiation on Temperature and Concentration on MHD Free Convection Flow Past a Vertical Porous Plate in the Presence of Chemical Reaction and Heat Source Parameter

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In the presence of viscous dissipation and radiation effects, a numerical analysis is performed for an unsteady‐free convective, radiative, chemically reactive, radiation absorption, viscous, incompressible, and electrically conducting fluid passing through an exponentially accelerating vertical porous plate. Numerical methods are used to solve the collection of nondimensional governing equations and their boundary conditions. Graphs are used to study the effects of different physical characteristics on flow quantities. Tables are used to study the differences in skin friction, the Sherwood number, and the Nusselt number for the physical interest. The analysis and explanation of the fluctuation in radiation and flow parameters on velocity and temperature gradient profiles through graphs using the Galerkin technique is the novelty of this work. For the magnetic, Prandtl, heat sink, radiation, Schmidt, and chemical reaction parameters, skin friction is significantly higher; however, for the Grashof, modified Grashof, permeability, radiation absorption, Dufour, and Soret numbers, skin friction has the opposite tendency.

Section: Introductionmentioning

confidence: 99%

Effect of radiation and viscous dissipation using the Galerkin method over a vertical porous plate with variation in temperature

Mangamma,

Appidi,

Malga

et al. 2024

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“…7 Sankar Reddy et al 8 reported an unstable MHD convective heat and mass transfer flow of micropolar fluid across a semi-infinite vertical moving porous plate in the presence of radiation. The impacts of the chemical reaction and heat source parameters on MHD Free Convection Flow Past a Vertical Porous Plate were investigated by Lakshmi et al 9 Reddy et al 10 investigate the effects of radiation and chemical reactions on unsteady transient MHD free convective and heat transfer of a viscous, electrically insulating fluid across an unexpectedly initiated infinite vertical porous plate while taking into account viscous dissipation. The finite element approach for unstable MHD temperature and mass transmission presented by Kishan et al 11 enabled the normal flow of polar fluids over a vertically moving permeable plate in a porous medium with convective heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…Sankar Reddy et al 8 reported an unstable MHD convective heat and mass transfer flow of micropolar fluid across a semi‐infinite vertical moving porous plate in the presence of radiation. The impacts of the chemical reaction and heat source parameters on MHD Free Convection Flow Past a Vertical Porous Plate were investigated by Lakshmi et al 9 …”

Section: Introductionmentioning

confidence: 99%

Effects of chemical reaction and thermal radiation on MHD free convective flow of micro polar fluid past an infinite moving vertical porous plate with viscous dissipation

Appidi¹,

Kumar²,

Matta³

et al. 2023

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This article discusses the impact of chemical reaction and radiation on an unstable two‐dimensional laminar flow around a viscous fluid over a semi‐infinite, vertical absorbent surface that moves progressively. The governing classification of partial differentiation was converted into an ordinary differentiation system in this case. To get numerical solutions, the Galerkin finite element technique is applied to nondimensional velocity, micro‐rotation, temperature, and concentration profiles. The consequences of skin friction, the combined pressure quantity, the mass, and heat assignments at the boundary are formed using different fluid properties and flow conditions. Physical quantities and their effects Graphs depict the radiation parameter R, thermal conductivity k, Eckert number Ec, and other velocities, micro‐rotation, temperature, and concentration factors. The main findings of this current problem is showing the chemical reaction effects on velocity and concentration. It is observed that both the velocity and concentration of the fluid decrease when Kr increases.

“…Thumma et al 31 discussed nonlinear thermal radiation effect on Eyring–Powell nanofluid flow across a nonlinear elongating sheet with Joule and viscous dissipation. Appidi et al 32 studied the effects of chemical reaction and heat source parameter on MHD free convection flow past a vertical porous plate. Appidi et al 33 studied the influence of Soret and Dufour numbers on an unsteady MHD free convection of flow of heat and mass transfer through porous media.…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal radiation on an unsteady MHD flow over an impulse vertical infinite plate with variant temperature in existence of Hall current

Appidi¹,

Malga

Kumar³

2021

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In this paper, the effects of thermal radiation on unsteady MHD flow viscous incompressible electrically conducting fluid past an impulsively started oscillating vertical plate with variable temperature and constant mass diffusion in the presence of Hall current have been presented. The dimensionless governing partial differential equations of the flow have been solved numerically by using the Galerkin finite element method. The