Multi objective optimization of a synthetic jet acting on a separated flow over a hump

Masamichi Nakamura, Taku Nonomura, Yoshifumi Inatani

研究成果: Conference contribution

抄録

The control parameters for a synthetic jet acting on a separated flow over hump are optimized using multi-objective optimization and effects of separation control are discussed. The following three parameters are used for operation of a synthetic jet: a synthetic jet position, a maximum velocity of jet and a synthetic jet frequency. A direct numerical simulation is performed by solving compressible, unsteady, laminar flows over a half cylindrical hump in two dimensions, and effectiveness of each operation of a synthetic jet is investigated. The optimization results show that periodic actuation improves aerodynamic coefficients. In particular, the performance of the synthetic jet placed around the top of the hump is better than other positions. It is found that the lift coefficient is maximized when a synthetic jet act at a low frequency in forward. Also it is found that the drag coefficient is minimized when a synthetic jet act at a high frequency in backward.

本文言語English
ホスト出版物のタイトル43rd Fluid Dynamics Conference
出版ステータスPublished - 2013 9月 11
外部発表はい
イベント43rd AIAA Fluid Dynamics Conference - San Diego, CA, United States
継続期間: 2013 6月 242013 6月 27

出版物シリーズ

名前43rd Fluid Dynamics Conference

Other

Other43rd AIAA Fluid Dynamics Conference
国/地域United States
CitySan Diego, CA
Period13/6/2413/6/27

ASJC Scopus subject areas

  • 流体および伝熱
  • エネルギー工学および電力技術
  • 航空宇宙工学
  • 機械工学

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