Thermal exploration of convective transportation of ethylene glycol based magnetized nanofluid flow in porous cylindrical annulus utilizing MOS2 and Fe3O4 nanoparticles with inconstant viscosity

Current research communication deliberates on the ethylene-glycol solvent base nanofluids flow over a porous cylindrical annulus. Thus, the industrial and technological demand for an enhanced heat transfer spurred the study. The energy and species transfer analysis are captured with the thermal radiation, uneven heat source/sink, radiation absorption, Soret number and variable viscosity. By imposing the two-different nanoparticles such as MOS2 (Molybdenum disulfide) and Fe3O4 (Magnetite) in the flow, the pertinent dimensionless variables are applied to overhaul the governing mathematical model into Partial differential equations via nondimensionlization transformation. The overhaul PDEs are semi-analytically solved by Chebyshev Collocation technique utilizing MAPLE symbolic software. Effects of different nanofluid terms on the momentum, thermal and solutal distributions are studied graphically. It was noticed that the momentum whittles down with boost in the Darcy and magnetic terms. Both velocity and temperature amplified in the case of microstructure of porous medium. A rise in the volume fraction caused a huge decline in both heat transfer and concentration. Schmidt number and reactive species negatively affects the concentration distributions. Overall Fe3O4 - EG nanofluid dominates the flow compared to MoS2 -EG nanofluid.

Automated summary

This study investigates the thermal conduction performance of ethylene-glycol solvent based nanofluids flow over a porous cylindrical annulus to meet the industrial and technological demand for enhanced heat transfer. By introducing two different nanoparticles and transforming the mathematical model into partial differential equations, the effects of different nanofluid terms on momentum, thermal and solutal distributions are studied. It is found that the momentum decreases with the increase of Darcy and magnetic terms, while both velocity and temperature are amplified by the microstructure of the porous medium. An increase in volume fraction leads to a significant decline in heat transfer and concentration, while Schmidt number and reactive species have negative effects on concentration distributions. Overall, Fe3O4-EG nanofluid dominates the flow compared to MoS2-EG nanofluid.