A Synthetic Jet Issuing From a Bio-Inspired Actuator With an Oscillating Nozzle Lip-Reference-Cited by-同舟云学术

A Synthetic Jet Issuing From a Bio-Inspired Actuator With an Oscillating Nozzle Lip

Published:2018-05-07 Issue:10 Volume:140 Page:
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Trávníček Zdeněk¹,Broučková Zuzana²

Affiliation:

1. Institute of Thermomechanics of the Czech Academy of Sciences, Dolejškova 5, Prague 8, 182 00, Czech Republic e-mail:

2. Institute of Thermomechanics of the Czech Academy of Sciences, Dolejškova 5, Prague 8, 182 00, Czech Republic

Abstract

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.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/doi/10.1115/1.4039792/6057676/fe_140_10_101104.pdf

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