Active control of cavity noise by fluidic oscillators

Masaya Shigeta, Toshimasa Miura, Seiichiro Izawa, Yu Fukunishi

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The purpose of this study is to develop an energy-efficient active-control device that can control cavity noise. A new control device using fluidic oscillator systems is tested, and its noise suppression effect is evaluated for cases when the oncoming boundary layer is either laminar or turbulent. As a result, it is demonstrated for the laminar flow case that a single fluidic device can completely suppress the peak cavity noise as well as the harmonic components. In the turbulent separating flow case, it is demonstrated that two synchronized devices are necessary to suppress the cavity noise.

Original languageEnglish
Pages (from-to)127-134
Number of pages8
JournalTheoretical and Applied Mechanics Japan
Publication statusPublished - 2009


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