Applications of Iron (II, III) oxide nanofluid in a chemically reacting porous medium

Abstract

Numerical analysis was conducted to evaluate the efficiency of heat and mass transfer in water-based nanofluids containing Iron (II, III) oxide. The study employed combined models of effective viscosity proposed by Vand and De Bruijn, as well as the effective thermal conductivity models developed by Bhattacharya et al. and Kumar et al. Additionally, the analysis incorporated the electroconductivity approximation by Boricic et al. and the radiative heat flux model for optically thin, low-density media developed by Cogley et al. A set of partial differential equations in rectangular coordinate was developed base on the formalism of the problem and was nondimensionalized using relevant parameters of hydrodynamics. Subject to boundary conditions, solutions of coupled equations were obtained by employing the Laplace Transform Technique for Nusselt number, Sherwood number, and skin friction, and their results tabulated. Results presented shows that heat transfer efficiency increases as the concentration of nanoparticle increase per unit volume, while mass transfer and the skin friction were dampened. Results further shows that as hydrodynamic boundary layer increases during the flow, heat and mass transfer increases correspondingly.