変形するノズルから流出する噴流

抄録

The purpose of this study is to control the jet diffusion by using the deforming nozzle. The shape of polypropylene nozzle can change from square shape into cruciform one smoothly and periodically. The velocity measurement of the jet flow was conducted using a PIV method, by changing the nozzle shape variously. The basic characteristics of the jet flow, such as the velocity distribution and the half value width have been obtained.