An experimental study on compressible cylindrical cavity flows

Kung Ming Chung, Kuan Huang Lee, Vadim Lebiga, Vitali Zinoviev

研究成果: Conference contribution

摘要

Experiments were performed to study the characteristics of compressible cylindrical cavity flows. The diameter-to-depth ratio is an important parameter in determining the characteristics inside a cylindrical cavity and its vicinity. Closed-type cavity flow has lower amplitude of mean surface pressure behind the front wall and higher one ahead of the rear wall of the cavity. The amplitude of surface pressure fluctuations increases toward the rear face for an open-type cavity, whereas an additional peak near the middle of cavity floor is observed for a closed-type cavity. The diameter-to-depth ratio affects the characteristics of pressure distribution of a cavity, while the freestream Mach number effect is less significant. By taking Fourier transform analysis of the data near the trailing edge of a cavity, resonant modes are observed in open- and transitional-cavity flows. These modes are well-predicted by the Rossiter's empirical equation developed for rectangular cavities. Furthermore, the dominant mode switches to a higher mode as Mach number increases.

原文English
主出版物標題International Conference on the Methods of Aerophysical Research, ICMAR 2016
主出版物子標題Proceedings of the 18th International Conference on the Methods of Aerophysical Research
編輯Vasily Fomin
發行者American Institute of Physics Inc.
ISBN(電子)9780735414280
DOIs
出版狀態Published - 2016 十月 13
事件18th International Conference on the Methods of Aerophysical Research, ICMAR 2016 - Perm, Russian Federation
持續時間: 2016 六月 272016 七月 3

出版系列

名字AIP Conference Proceedings
1770
ISSN(列印)0094-243X
ISSN(電子)1551-7616

Other

Other18th International Conference on the Methods of Aerophysical Research, ICMAR 2016
國家/地區Russian Federation
城市Perm
期間16-06-2716-07-03

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

指紋

深入研究「An experimental study on compressible cylindrical cavity flows」主題。共同形成了獨特的指紋。

引用此