Radiative MHD compressible Couette flow in a parallel channel with a naturally permeable wall

Abstract

The paper pertains to investigations of thermal radiation effects on dissipative magnetohydrodynamic Couette flow of a viscous compressible Newtonian heat-generating fluid in a parallel plate channel whose one wall is stationary and naturally permeable. Saffman' slip condition is used at the clear fluid-porous interface. The fluid is considered to be optically thick and the radiative heat flux in the energy equation is assumed to follow Rosseland approximation. The momentum and energy equations have closed form solutions. The effects of various parameters on thermal regime are analyzed through graphs and tables.

Entropy Analysis for MHD Generalised Couette Flow in a Composite Duct

“…The last term in (25) accounts for local entropy generation due to friction offered by porous medium.…”

“…The thermal characteristics at clear fluid-porous interface are important to understand numerous processes like pollutant dispersion in aquifers, environment transport processes, separation processes in chemical industry, flow past porous scaffolds in bioreactors, drying process, and so forth. Many authors have investigated Couette flow for variety of configurations [20][21][22][23][24][25]. The laminarity of channel flow is a pertinent issue and therefore many numerical and laboratory studies have been devoted on the channel flow regime (clear fluid channel and porous medium channel) to be laminar.…”

Flow and heat transfer of three immiscible fluids in the presence of uniform magnetic field

“…-where current density vector r J is r r r r J = (E + U B) s´ (6) and r E is the vector of applied electric field, which is neglected in present study.…”

“…One of the first works in the field of mass and heat transfer in the presence of magnetic field was presented by Blum [1]. The flow and heat transfer of a viscous incompressible electrically conducting fluid between two infinite parallel insulating plates have been studied by many researchers [2][3][4][5][6].…”

Micropolar couple stress thermofluidics and entropy in Forchheimer channel

“…Vyas and his coauthors 32‐36 examined entropy production in various thermofluidic configurations, which included Casson fluid, micropolar fluid, second‐order fluid, forced convection, temperature‐dependent convection coefficient, and so on, in Darcy and Darcy–Brinkman models. Here, it is recalled that the internal structure of the porous matrix differs from medium to medium and is found in form of interconnected voids, network of capillaries, cracks, and so on.…”