Marangoni-driven boundary layer flow innano fluids

摘要

The problem of steady, laminar Marangoni convection boundary layer flow in nanofluids is studied using different types of nanoparticles. The general governing partial differential equations are transformed into a set of two nonlinear ordinary differential equations using unique similarity transformation. Numerical solutions of the similarity equations are obtained using the Runge-Kutta-Fehlberg method. Three different types of nanoparticles, namely Cu, Al_2O_3, and TiO_2 are considered by using water as a base fluid with Prandtl number Pr = 6.2. It is found that nanoparticles with low thermal conductivity, TiO_2, have better enhancement on heat transfer compared to Cu and Al_2O_3.