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Experimental investigation of the aeroacoustics of synthetic jet actuators in quiescent conditions

Jeyalingam, Jonne; Jabbal, Mark

Authors

Jonne Jeyalingam

Mark Jabbal



Abstract

In this paper, the aeroacoustic characteristics of a circular orifice, synthetic jet actuator in quiescent conditions is investigated. Electromagnetic actuation, in the form of a shaker-driven actuator with latex diaphragm, proved to be desirable over piezoelectric actuation for this work due to the reduced diaphragm noise contribution to overall actuator self-noise, hence making it easier to identify jet-related noise. Acoustic and velocity data, collected from microphone measurements in an anechoic chamber and hotwire measurements respectively, were compared for correlation. Schlieren visualization was also used to show synthetic jet development near the orifice. Flow-induced sound in the form of an audible whistling was found to occur for a Strouhal number range of 0.24

Journal Article Type Article
Publication Date Sep 1, 2018
Journal Sensors and Actuators A: Physical
Print ISSN 0924-4247
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 280
Pages 52-60
APA6 Citation Jeyalingam, J., & Jabbal, M. (2018). Experimental investigation of the aeroacoustics of synthetic jet actuators in quiescent conditions. Sensors and Actuators A: Physical, 280, 52-60. https://doi.org/10.1016/j.sna.2018.07.007
DOI https://doi.org/10.1016/j.sna.2018.07.007
Keywords Synthetic jet actuator; Aeroacoustics; Pfeifentone; Whistling; Noise
Publisher URL https://www.sciencedirect.com/science/article/pii/S0924424717322446?via%3Dihub

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