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Flow visualization and measurement of a synthetic jet actuator performance using PIV system

Mansor, Shuhaimi and Dahalan, M. N. and Lee, Z. K. and Ali, A. (2014) Flow visualization and measurement of a synthetic jet actuator performance using PIV system. Jurnal Teknologi, 71 (2). pp. 13-17. ISSN 0127-9696

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Official URL: https://dx.doi.org/10.11113/jt.v71.3712

Abstract

This paper presents the performance of a piezoelectric Synthetic Jet Actuator (SJA) in quiescent flow. Pulse jet velocity and vorticity were taken as the parameter to evaluate the performance of SJA. PIV measurements on the jet flow at the orifice exit of a round SJA were conducted by varying the oscillating in frequency and voltage. The location of 5mm above orifice was identified as the optimum location for maximum pulse jet measurements. The maximum pulse jet velocity and vorticity obtained were 18.77 m/s and 242.5s-1. The PIV experiment showed that by varying oscillating frequency at fixed input voltage, the performance of SJA was greatly affected by Helmholtz resonance. While in the investigation of varying input voltage at fixed oscillating frequency, diaphragm defection was the parameter that affects the performance of the SJA. Besides, PIV measurement showed that the flow patterns of vortex structure formation were affected by the oscillating frequency and pulse jet velocity.

Item Type:Article
Uncontrolled Keywords:quiescent flow, synthetic jet actuator, piezoelectric diaphragm, PIV
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:52911
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 03:54
Last Modified:19 Jul 2018 07:18

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