Effects of nanoparticle volume fraction in hydrodynamic and thermal characteristics of forced plane jet

Abstract

The effects of nanoparticle volume fraction in hydrodynamic and thermal characteristics ofan incompressible forced 2-D plane jetflow are investigated. Direct numerical simulation ofa 2-D incompressible plane forcedjet flowfor two nanofluids has been performed. The base fluid is water and the nanoparticles are AI2O3 and CuO. The numerical simulation is carried outfor the solid volume fraction between 0 to 4%. The results for both nanofluids indicate that any increase in the solid volume fraction decreases the amplitude of temperature, velocity time histories, the turbulent intensities, and that of the Reynolds stresses. The results for both two nanoparticles also indicate that with any increase in nanoparticle volumefraction, the velocity amplitude of velocity time history, the turbulent intensities, and Reynolds stress in Al2O3-water are greater than that of CuO-water nanofluid.