STUDY ON ALUMINA-WATER NANOFLUID SKINFRICTION FOR DIFFERENT REYNOLDS NUMBERS

摘要

The present study aims to identify effects due to convection heat transfer in a microtubetube enclosure. Different Reynolds numbers for different types of convection flow of a water-Al_2O_3 nanofluid was numerically analyzed. The single-phase model was employed to simulate the nanofluid convection. Simulations have been carried out for the volumetric fraction of alumina nanoparticles, φ = 0-3%. It is found that heat transfer for nanofluids is greater than that of the base liquid. Skin friction coefficient is increasing with the particle volume concentration and Reynolds number.