Active flow control technique using piezo-film actuators applied to the sound generation by a cavity

S. Kikuchi, Y. Fukunishi

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Citations (Scopus)

Abstract

An experimental investigation aimed at controlling cavity noise using piezo-film actuators is carried out. Two pieces of thin piezo-film actuators, attached to the plate surface side-by-side in the spanwise direction at the upstream edge of the cavity, are used to introduce perturbations with different phases. The flow noise suppression can be accomplished in some cases, as a result of the active flow control. However, it is shown that for the cases where two peaks appear in the velocity fluctuation spectrum, the noise reduction is not successful.

Original languageEnglish
Title of host publicationProceedings of the 1999 3rd ASME/JSME Joint Fluids Engineering Conference, FEDSM'99, San Francisco, California, USA, 18-23 July 1999 (CD-ROM)
PublisherAmerican Society of Mechanical Engineers
Number of pages1
ISBN (Print)0791819612
Publication statusPublished - 1999 Dec 1

Keywords

  • Active control
  • Cavity Flow
  • Flow Control
  • Flow Noise

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

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