抄録
This paper presents the results of an experimental study on the deflection and reattachment of an axisymmetric radial turbulent wall jet (main jet) discharged from a cylindrical nozzle onto an adjacent disk plate, in the presence of a lateral control flow from and annular slit. The main content of this report concerns the effect of various control flow rates (ratio of the control flow rate to the main jet flow rate) on the flow structure in the region near the nozzle exit. Mean and turbulent velocities were measured with a hot-wire anemometer, while static pressure was measured by means of a Pitot-static tube and a pressure pick-up of a strain gauge type. The velocity profile, shape and length of a jet potential core, and the deflection of the jet's center axis depend mainly on the control flow rate and the wall effect.
