| || Turbulence Measurements in Swirling Flows
Author : Marwah, I.J. ;Chopra, M.G.
Source : Defence Science Journal ; Vol:31(4) ; 1981 ; pp 261-275
Subject : 532 Fluid Mechanics
Keywords : Recirculation zone ;Diffuser angle;Turbulence intensity;Anemometer;Divergent passage
Abstract : Investigation have been conducted to find out the region of high turbulent intensities in a swirling jet passing through a divergent passage. A hot wire anemometer is used to measure the turbulence intensity using a four position method. It has been concluded that the jet spreads with increasing diffuser angle and the region of high turbulent intensity also spreads. The high turbulence intensity region lies around the recirculation zone and it decays rapidly along the main flow direction.