DARCIAN SLIP FLOW OF ROTATING MAGNETOREACTIVE PEG CONVEYING MoS_2 CASSON NANOFLUID WITH RAMPED TEMPERATURE AND CONCENTRATION

摘要

An analysis is presented to assess the impact of slip condition and rotation on an unsteady hydromanetic Darcy flow of a viscous incompressible electrically conducting non-Newtonian Casson nanofluid past an infinite oscillating vertical plate with ramped heating and concentration embedded in a homogeneous porous medium in the presence of thermal radiation and homogeneous chemical reaction of first order. The nanofluid is composed of molybdenum disulfide (MoS2)) nanoparticles suspended in base fluid polyethylene glycol (PEG). A Casson fluid model presents the non-Newtonian fluid behavior. Rosseland approximation for an optically thick fluid is used to describe the radiative heat flux in the energy equation. The classical Dracy model simulates drag effects in the porous medium. The resulting simultaneous ordinary equations governing the flow are solved analytically in closed form by employing the Laplace transform technique. Graphical presentations are portrayed to examine the physical consequences of intricate physical parameters on the pertinent flow characteristics. The obtained results reveal that the velocity components are strongly diminished by intensifying magnetic parameter or slip parameter. The wall shear stresses are increasing functions of rotation parameter. This study finds applications in magnetic material processing and electrically conducting polymer dynamics.