S0502-1-5 長方形断面ノズルから噴出する脈動噴流の三次元形状評価([S0502-1]噴流,後流および剥離流れ現象の解明と制御(1))

概要

論文の詳細を見る
This study focused on the development in space and time of vortex structures evolution in low aspect-ratio rectangular jet with pulsation. Pulsed rectangular jet was visualized using scanning-LIF (Laser Induced Fluorescence) method to clarify the vortex nature in the near field of the jet. Pulsation means large-amplitude, low-frequency excitation. It was deemed appropriate to investigate whether jet characteristics of the pulsating, submerged jet flow can be altered by including pulsations. The difference of the vortex deformation process was discussed in relation to pulsating conditions. Consequently, the pulsation leads to the formation of vortices at regular intervals. These vortices are larger than those occurring in a steady jet. The results show that the interaction between leading vortex and trailing vortex.
一般社団法人日本機械学会の論文
2010-09-04