The phase control of vortex shedding behind a cylindrical bluff body by micro-excitation on boundary layer

Manabu Oda, Yoshihisa Yamamoto, Masato Furukawa, Masahiro Inoue

Research output: Contribution to journalArticle

Abstract

A control of periodic vortex shedding behind a cylindrical bluff body has been made experimentally by vibrating side-plates with piezoelectric actuators. Entrainment of the vortex shedding frequency occurs by the vibration with amplitude of 20≈65 μm. The entrainment effect is evaluated quantitatively by introducing an integral scale of the frequency in the power spectral density distribution. When the side-plates are vibrated with an opposite phase in a half span of the body, the vortex shedding follows up the vibration. In the mid span, a switching phenomenon of the vortex shedding is observed.

Original languageEnglish
Pages (from-to)2030-2036
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume69
Issue number685
DOIs
Publication statusPublished - Sep 2003

Fingerprint

bluff bodies
Phase control
phase control
vortex shedding
Vortex shedding
boundary layers
Boundary layers
entrainment
excitation
vibration
piezoelectric actuators
Piezoelectric actuators
Power spectral density
density distribution

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

The phase control of vortex shedding behind a cylindrical bluff body by micro-excitation on boundary layer. / Oda, Manabu; Yamamoto, Yoshihisa; Furukawa, Masato; Inoue, Masahiro.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 69, No. 685, 09.2003, p. 2030-2036.

Research output: Contribution to journalArticle

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