2000年
脈動噴流に関する研究 第3報 渦の挙動に及ぼす噴出口形状の影響:(第3報 渦の挙動に及ぼす噴出口形状の影響)
可視化情報学会誌
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- 巻
- 20
- 号
- 78
- 開始ページ
- 228
- 終了ページ
- 234
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.3154/jvs.20.228
- 出版者・発行元
- The Visualization Society of Japan
The purpose of this experiment is to make clear the effect of jet-exit conditions on the vortex formations of pulsating jets. Three exit conditions, two kinds of nozzles and an orifice are used in the experiment. One of these nozzles has a long parallel section, and the other has a short one. The pulsating jets are generated by Scotch yoke mechanism. The flow is visualized by a hydrogen bubble method. Obtained results are as follows: The flow patterns are strongly affected by jet-exit conditions. For the nozzle jets, the fre-quency of vortex formation agrees with that of the jet pulsation. For the orifice jet, a large scale vortex caused by the pulsation and a lot of vortices due to the shear layer in-stability are formed, and the vortices coalesce. The vortices of the orifice jet move down-stream faster than those of the nozzle jets.
- リンク情報
- ID情報
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- DOI : 10.3154/jvs.20.228
- ISSN : 0916-4731
- ISSN : 1884-037X
- CiNii Articles ID : 130003649377