Title :
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
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;
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
DOI :
10.1109/ICCAS.2007.4406867
