Abstract
If a three-dimensional, turbulent, round wall jet is issued tangentially along a circular cylinder, the jet scarcely deflects and does not attach to it since the jet comes into contact with a small area on the cylinder surface near the nozzle exit. However, when the jet is issued at an angle, the jet flows attach to it at the nozzle exit. It is a very important to elucidate the flow characteristics, because they are concerned with enhancement of wing lift, control of boundary layer, film cooling, and so on. In this study, the effects of ejection angle on the flow characteristics, velocity and pressure distributions, decay of maximum velocity, spread of jet, separation (attachment distance), and so on, are clarified experimentally.
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