Active control of flow and aerodynamic noise over a cavity using thin ceramic actuators

Yuzuru Yokokawa, Yu Fukunishi, Satoshi Kikichi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

An experimental investigation attempting to actively control the flow over a cavity and to reduce the aerodynamic noise is carried out. Thin piezoelectric pieces are used as the actuators. Two types of piezo-ceramic devices, a uni-morph type and a bi-morph type, are compared. Experimental results show that both types are capable of generating a flow field that is 180 degree out of phase along the spanwise direction. However, the uni-morph type piezo-ceramic actuator pieces can control the flow under wider range of experimental conditions. The unimorph type actuator pieces are also more effective in suppressing the aerodynamic noise.

本文言語English
ページ(範囲)2218-2225
ページ数8
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
67
661
DOI
出版ステータスPublished - 2001 9

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

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