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

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

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