General Solutions for Some MHD Motions of Second-Grade Fluids between Parallel Plates Embedded in a Porous Medium

Article Thermodynamics

An unsteady MHD flow of a second-grade fluid passing through a porous medium in the presence of radiation absorption exhibits Hall and ion slip effects

Aruna Ganjikunta et al.

Summary: This study analyzed the effects of radiation absorption, Hall and ion slip effects on an unsteady laminar magnetohydrodynamics convective rotating flow of heat-producing or absorbing second-grade fluid across an inclined moving permeable surface in the presence of chemical reaction and radiation absorption. The results showed that an increase in radiation absorption, Hall, and ion slip parameters led to a rise in the resulting velocity of the fluid, while the rotation parameter reduced skin friction and the chemical reaction parameter increased mass transfer rate.

HEAT TRANSFER (2023)

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Article Multidisciplinary Sciences

On an Important Remark Concerning Some MHD Motions of Second-Grade Fluids through Porous Media and Its Applications

Constantin Fetecau et al.

Summary: The governing equations for the fluid velocity and shear stress in isothermal MHD unidirectional motions of incompressible second-grade fluids through porous medium have identical forms, allowing for exact steady-state solutions with shear stress on the boundary. Closed-form expressions for fluid velocity, shear stress, and Darcy's resistance are provided, with results verified through solutions for motions over an infinite flat plate presented in different forms. The fluid behavior in motions between infinite parallel plates is symmetric with respect to the median plane due to boundary conditions.

SYMMETRY-BASEL (2022)

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Article Mathematics