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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1104Water Synthetic Jet Driven by a Piezoelectric...

Water Synthetic Jet Driven by a Piezoelectric Actuator – LIF and PIV Experiments

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Abstract:

A synthetic jet (SJ) is a fluid jet flow generated from fluid oscillations during a periodical fluid exchange between an actuator cavity and surrounding fluid. A water synthetic jet was generated from submerged piezoelectric-driven SJ actuator. The actuator slot width was 0.36 mm. The experiments were performed using laser induced fluorescence (LIF) flow visualization and particle image velocimetry (PIV) techniques, both in a phase locked setup. The LIF visualization was used to demonstrate three-dimensional nature of the SJ formation process and to estimate SJ velocity. The PIV experiment quantified SJ velocity cycles in chosen plans. The driven frequency was adjusted near the resonance at approximately 46 Hz. It was evaluated theoretically and confirmed experimentally by means of LIF visualization. The time-mean orifice velocity and the Reynolds number were estimated as U₀= 0.07–0.10 m/s and Re = 100–150, respectively.

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Materials for Modern Technologies I

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Periodical:

Advanced Materials Research (Volume 1104)

Pages:

45-50

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1104.45

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Cite this paper

Online since:

May 2015

Authors:

Zuzana Broučková, Shu Shen Hsu, An Bang Wang, Zdeněk Trávníček*

Keywords:

Flow Visualization, Laser Induced Fluorescence, Particle Image Velocimetry, Synthetic Jet

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* - Corresponding Author

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