A comparative study of Ag–MgO/water and Fe[formula omitted]–CoFe[formula omitted]/EG–water hybrid nanofluid flow over a curved surface with chemical reaction using Buongiorno model

Abstract

This investigation aims to scrutinize the flow phenomenon, thermal and concentration variations of two different hybrid nanofluids flow induced by a curved surface. The novelty of the work is to examine the heat and mass transport phenomena of Ag–MgO/water hybrid nanofluid and Fe3O4 –CoFe 2O4 /water–ethylene glycol hybrid nanofluid under the influences of viscous dissipation, heat generation/absorption and chemical reaction using Buongiorno model. Suitable similarity transformations are implemented to convert the set of partial differential equation (PDEs) into non-linear ordinary differential equations (ODEs), and then shooting based Runge–Kutta–Fehlberg method of fourth fifth order (RKF45) via MATLAB is executed to achieve the numerical solution. The solution is discussed through graphs which provide a detailed physical clarification of each profile in terms of involved parameters effects. Also, the comparison of heat and mass transfer rates in both hybrid nanofluids is deliberated with the assistance of tables. It is noticed that the temperature profiles for both hybrid nanofluids grow high with a boost in the values of the viscous dissipation, heat generation/absorption and thermophoresis parameters. Moreover, the increasing values of thermophoresis parameter and chemical reaction parameter improve the mass transfer rate of both Ag–MgO/water hybrid nanofluid and Fe3O4 –CoFe 2O4 /water–ethylene glycol hybrid nanofluid. The proposed investigation shows the importance of these hybrid nanofluids in chemical, manufacturing and nuclear plants, solar technologies, etc.