Effect of non-linear radiation on catalytic MHD flow of ND-Co3O4/EG hybrid nanofluid with slip conditions

Abstract

The following work studies the mixed convection flow of ND-Co3O4/EG hybrid nanofluid through a permeable cylinder. The problem is designed to study the effects of magnetic field, homogeneous-heterogeneous reaction, non-linear thermal radiation and slip condition on the flow field. Here we have taken ND-Co3O4/EG as the hybrid nanofluid. The governing equations are formed according to the given criteria and the respective boundary conditions are defined. The physical quantities like Nusselt number and skin friction are derived. The governing equations along with their boundary conditions and the physical quantities are transformed into their non- dimensional forms by using the respective similarity transformations. A system of non-linear ordinary differential equation is obtained from the non-dimensional governing equations. The numerical solution of the model is obtained by using the BVP4C solver in MATLAB. The behaviour of velocity profile, temperature and concentration profiles of the fluid have been analysed by varying the flow parameters and are represented in the form of graphs. The Nusselt number and the skin friction are presented numerically in the table. Some major findings of the problem are, the velocity profile of the fluid decreases as we enhance the Prandtl number. The same trend is seen in the case of temperature profile. With the ascending variation of radiation parameter the temperature profile increases. The concentration profile increases as we increase the Schmidt number and as we enhance the magnetic parameter the velocity of the fluid decreases. The above defined model have many scopes of application in industrial and manufacturing areas.