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 language | English |
|---|---|
| Title of host publication | Proceedings of the 1999 3rd ASME/JSME Joint Fluids Engineering Conference, FEDSM'99, San Francisco, California, USA, 18-23 July 1999 (CD-ROM) |
| Publisher | American Society of Mechanical Engineers |
| Number of pages | 1 |
| ISBN (Print) | 0791819612 |
| Publication status | Published - 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)