Abstract Submitted
for the DFD13 Meeting of
The American Physical Society
Characterization of synthetic jet actuators used for jet noise
reduction by flow control ALEXIS ZELENYAK, ZACHARY BERGER,
MATTHEW BERRY, PATRICK SHEA, MARK GLAUSER, Syracuse University
— The issue of jet noise introduces various opportunities for advancements in flow
control and fluid dynamics. One such method for jet noise reduction involves the use
of synthetic jet actuators as shear layer excitation on the flow produced by a fully
compressible, turbulent jet. A set of eight zero-net-mass flux actuators are organized
around the periphery of the jet in an actuation glove fitting on the nozzle. As some
noise reduction has been achieved through the use of this actuation system, further
characterization of the system is necessary to fully quantify its capabilities and understand its effect on the flow physics in the shear layer. The synthetic jet actuators
are driven by several different frequencies based on the Helmholtz resonance of the
cavities, with measurements taken at several locations along the actuator orifice.
Velocity profiles are then constructed from the measured response using hot wire
anemometry. Such experimental results provide vital insight into the flow field created by the synthetic jet actuator system, allowing for more effective modification
to the actuation glove.
Alexis Zelenyak
Syracuse University
Date submitted: 01 Aug 2013
Electronic form version 1.4
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