抄録
This study is concerned with the temporal and spatial structure of a radial jet which reattaches on a side wall. Large-scale unsteadiness of the flow was clarified experimentally by velocity measurements with the conditional sampling technique. The flow oscillates up and down periodically in the arbitrary section. And this oscillation shows a different behavior if the circumferential position changes in the same time. Also, the oscillating frequency decreases as the offset distance between the nozzle and the side wall increases.
