Studying three-dimensionality of vortex shedding at Reynolds numbers of 104 with MEMS sensors

J. K. Tu, Jiun-Jih Miau, Y. J. Wang, G. B. Lee, C. Lin

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

Abstract

Experiments were made with 14 MEMS sensors situated along the span of a circular cylinder of aspect ratio 5. The signals of the MEMS sensors were sampled simultaneously as flow over the cylinder at Reynolds numbers of 104. The results of Wavelet analysis of the signals indicate that the percentage of time during which strong three-dimensionality of vortex shedding was detected is about 10%. As noted, strong three-dimensionality took place when the fluctuating amplitude of the. signals was severely modulated and the vortex shedding - frequency reduced was abnormally high or low. Further noted was that the addition of a splitter plate of 0.5 or one diameter in length behind the circular cylinder was not able to suppress the three-dimensionality of the flow.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Pages17014-17028
Number of pages15
Publication statusPublished - 2006 Dec 1
Event44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
Duration: 2006 Jan 92006 Jan 12

Publication series

NameCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Volume22

Other

Other44th AIAA Aerospace Sciences Meeting 2006
CountryUnited States
CityReno, NV
Period06-01-0906-01-12

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

Fingerprint Dive into the research topics of 'Studying three-dimensionality of vortex shedding at Reynolds numbers of 10<sup>4</sup> with MEMS sensors'. Together they form a unique fingerprint.

Cite this