Numerical simulation of heat transfer and fluid flow in a confined jet impingement using water-TiO2 nanofluid

Abstract

This article presents a numerical investigation on heat transfer and fluid flow of a confined plane laminar nanofluids jet impingement on an isothermal heated surface using single-phase model. The finite volume method was used for the solution of resulting governing equations. TiO2 nanoparticles dispersed in water with volumetric concentration of nanoparticles ranging between 0 and 4% were used as working fluid for simulating the heat transfer and fluid flow of nanofluids jet impingement. The influences of volumetric concentration of nanoparticles, aspect ratio and Reynolds number were examined and discussed in details. The results indicated that the volumetric concentration of nanoparticles and Reynolds number enhance heat transfer when considering in terms of the local and average Nusselt number. However, heat transfer is not improved whereas increasing aspect ratio H/B ranging from 1 to 4.