Studying the effect of radiation on thin‐film sprayed nanofluid flow with heat transfer

Abstract

In this paper, we discuss thin-film nanofluid sprayed in non-Darcian, magnetohydrodynamic, embedding in a porous medium flow and thermal radiation with heat transfer generation on a stretching cylinder. The spray rate is a function of film size. A comparative study is made for the nanoparticles, namely, copper oxide (CuO), alumina oxide (Al O 2 3 ), and iron oxide (Fe O ) 3 4 . The governing continuity, momentum, and energy equations of the nanofluid are reduced using similarity transformation and converted into a system of nonlinear ordinary differential equations, which are solved numerically. Numerical solutions are obtained for the velocity and temperature fields as well as for the skin-friction coefficient and Nusselt number. The pressure distribution and spray rate are also calculated. The results are presented in graphical forms to study the effects of various parameters. K E Y W O R D Snanofluid, porous medium, spray, stretching cylinder, temperature buoyancy, thermal radiation, thin film