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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.5

ISSN 印刷: 1065-3090
ISSN オンライン: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v17.i3.20
pages 203-214

EXPERIMENTS ON RESONANCE FREQUENCIES OF SYNTHETIC JET ACTUATORS

Jozef Kordik
Faculty of Mechanical Engineering, Czech Technical University in Prague, Institute of Thermomechanics AS CR, Czech Republic
Zdenek Travnicek
Institute of Thermomechanics of the Czech Academy of Sciences
Pavel Safarik
Faculty of Mechanical Engineering, Czech Technical University in Prague; Institute of Thermomechanics AS CR, v. v. i., Academy of Sciences of the Czech Republic

要約

This paper reports studies on the frequency behavior of synthetic jet actuators. Through experimental and theoretical investigations of different geometrical configurations, two resonant frequencies were revealed. The first resonant frequency resulted from the mechanical oscillations of the working fluid, and the second resulted from the Helmholtz resonator frequency. The effects of the actuator orifice length, cavity volume, and cavity shape on resonance frequencies were investigated.


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