Experimental study on the time-delayed-phase-control for reduction of open cavity noise

Author

Yoo, Seung Pil ; Lee, Doo Yang

Author_Institution

Korea Adv. Inst. of Sci. & Technol., Daejeon

fYear

2007

fDate

17-20 Oct. 2007

Firstpage

2909

Lastpage

2914

Abstract

A flow over an open cavity can cause a resonance which is a feedback mechanism between the acoustic waves and the pressure fluctuation of the cavity flow. Time-delayed-phase-control (TDPC) method can suppress the cavity resonance. Mechanism of the noise reduction in the TDPC is different from the general active methods for noise cancellation. This paper presents an experimental study on the control effects of the TDPC method. The experimental results are compared with the analytical results, and show substantial conformance.

Keywords

acoustic waves; cavitation; delays; feedback; flow control; phase control; acoustic waves; cavity flow; cavity resonance; feedback mechanism; open cavity noise reduction; pressure fluctuation; time-delayed-phase-control; Acoustic noise; Acoustic propagation; Acoustic waves; Active noise reduction; Actuators; Automatic frequency control; Feedback loop; Noise cancellation; Noise reduction; Resonance; active noise control; cavity resonance; flow-induced noise; time-delayed-phase-control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems, 2007. ICCAS '07. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-950038-6-2

Electronic_ISBN

978-89-950038-6-2

Type

conf

DOI

10.1109/ICCAS.2007.4406867

Filename

4406867