抄録
The development of a large vortex structure in fluid flow is responsible for some of the most fascinating aspects of fluid dynamics, such as mixing, transport, and instability. This paper describes an experimental study on the vortex nature of a pulsating jet issuing from a rectangular nozzle of an aspect ratio of 5 which has short parallel section upstream of the jet exit. The visualized images by hydrogen bubble method revealed the influence of the bounded plates upon the vortex nature.
