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15:45
15 mins
Reynolds number effect on 3D turbulent offset jet reattaching to a free surface
Mohammad Shajid Rahman, Mark Tachie, Baafour Nyantekyi-Kwakye
Session: Jets and Wakes 2
Session starts: Tuesday 25 August, 15:00
Presentation starts: 15:45
Room: Room E
Mohammad Shajid Rahman (Department of Mechanical Engineering, University of Manitoba, Winnipeg, Canada)
Mark Tachie (Department of Mechanical Engineering, University of Manitoba, Winnipeg, Canada)
Baafour Nyantekyi-Kwakye (Department of Mechanical Engineering, University of Manitoba, Winnipeg, Canada)
Abstract:
Experimental study was carried out to investigate the effect of Reynolds number on 3D offset jet reattaching to above free surface. Sharp edged square nozzle was used to produce the jets, and the measurements were performed at the following six different Reynolds numbers: 2300, 3700, 5100, 7900, 10300 and 11900. Detailed velocity measurements were made in the symmetry plane. From the PIV data, the mean velocity and turbulence statistics were obtained to study the effects of Reynolds number on the salient features of the jet flow. Preliminary results on streamwise mean velocity decay along the nozzle centerline, contours of streamwise mean velocity and Reynolds shear stress are presented herein.