An experimental study on compressible cylindrical cavity flows

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationInternational Conference on the Methods of Aerophysical Research, ICMAR 2016
Subtitle of host publicationProceedings of the 18th International Conference on the Methods of Aerophysical Research
EditorsVasily Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414280
DOIs
Publication statusPublished - 2016 Oct 13
Event18th International Conference on the Methods of Aerophysical Research, ICMAR 2016 - Perm, Russian Federation
Duration: 2016 Jun 272016 Jul 3

Publication series

NameAIP Conference Proceedings
Volume1770
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other18th International Conference on the Methods of Aerophysical Research, ICMAR 2016
CountryRussian Federation
CityPerm
Period16-06-2716-07-03

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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