旋回噴流の挙動に及ぼす固体壁の影響

概要

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An experimental study has been carried out for an air jet with swirl discharging from a nozzle along a solid surface and an air jet with swirl which impinges on the solid surface. Mean and fluctuating velocities are measured by rotating a probe with an inclined hot wire. Each distribution of mean velocity and wall pressure was illustrated, and the jet characteristics were examined. The experimental result was compared with existing result of the jet with swirl which gushes in still air out or existing result of the jet without swirl, and effect of the solid surface on the jet and effect of the intensity of swirl were examined.