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Numerical investigation of nozzle geometry effect on turbulent 3-D water offset jet flows
, Article Journal of Applied Fluid Mechanics ; Volume 9, Issue 4 , 2016 , Pages 2083-2095 ; 17353572 (ISSN) ; Afshin, H ; Farahanieh, B ; Sharif University of Technology
Isfahan University of Technology
2016
Abstract
Using the Yang-Shih low Reynolds k-ε turbulence model, the mean flow field of a turbulent offset jet issuing from a long circular pipe was numerically investigated. The experimental results were used to verify the numerical results such as decay rate of streamwise velocity, locus of maximum streamwise velocity, jet half width in the wall normal and lateral directions, and jet velocity profiles. The present study focused attention on the influence of nozzle geometry on the evolution of a 3D incompressible turbulent offset jet. Circular, square-shaped, and rectangular nozzles were considered here. A comparison between the mean flow characteristics of offset jets issuing from circular and...