A novel variant of a synthetic jet actuator (SJA) has been designed, manufactured, and tested. The novelty consists in a bio-inspired nozzle whose oscillating lip is formed by a flexible diaphragm rim. The working fluid is air, and the operating frequency is 65 Hz. The proposed SJA was tested by three experimental methods: phase-locked visualization of the nozzle lips, hot-wire anemometry, and momentum flux measurement using a precision scale. The results demonstrate advantages of the proposed SJA, namely, an increase in the momentum flux by 18% compared with that of a conventional SJA.
A Synthetic Jet Issuing From a Bio-Inspired Actuator With an Oscillating Nozzle Lip
Academy of Sciences,
Prague 8, 182 00, Czech Republic
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received November 27, 2017; final manuscript received March 6, 2018; published online May 7, 2018. Assoc. Editor: M'hamed Boutaous.
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Trávníček, Z., and Broučková, Z. (May 7, 2018). "A Synthetic Jet Issuing From a Bio-Inspired Actuator With an Oscillating Nozzle Lip." ASME. J. Fluids Eng. October 2018; 140(10): 101104. https://doi.org/10.1115/1.4039792
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