Computational study on magnetohydrodynamics heat and mass transport in polymeric liquid using micropolar theory of fluids

Abstract

Theory of Eringen for polymer fluid, called micropolar fluid, has revealed that if micro-solid structures or nano-sized solid bodies are immersed in polymers, then vortex and spin gradient effects become significant and the flow of such polymers cannot be modeled by the usual Newtonian rheological model or non-Newtonian model which do not capture vortex and spin gradient effects due to couple stress exerted by nano- or microstructures. Thus this manuscript uses Eringen's theory and generalized Fourier law for modeling of flows and related mechanisms like heat and mass transfer. Models are solved numerically and simulations are visualized. The different samples of parametric values are chosen during numerical experiments and outcomes are examined. The mass flux has shown an increasing behavior versus vortex motion of fluid particles due to raise in convective transport of mass of solute. It is also found that mass flux in hybrid nanopolymers is less than that in mono nanopolymers. Magnetic field intensity is directly proportional to the mass flux and therefore, an increase in mass flux due to an increase in Hartmann number is observed. Solutal relaxation time has shown an increasing behavior on the mass flux.