Bimorph-driven synthetic jet actuators optimized for various piezoelectric materials using a low-order model

Yu, Tianliang; Lesieutre, George A.; Griffin, Steven; Brzozowski, Daniel P.; Sassoon, Aaron M.

doi:10.1117/12.2263359

Cited by 1 publication

(2 citation statements)

References 9 publications

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“…The entire cycle is divided into n parts. The Helmholtz frequency of each time is f i which could be calculated from equation (17). Different from the piezoelectric synthetic jet actuator, the thermodynamic parameters of the gas in the cavity of the plasma synthetic jet actuator vary greatly with time and the pressure P c cannot be replaced by ambient pressure P ∞ .…”

Section: Physical Modeling Developmentmentioning

confidence: 99%

“…However, these physical models cannot directly reflect the affecting factors of the saturation frequency, nor do they establish the expression of the saturation frequency. Over the past decades, many investigations [13][14][15][16][17] have been done on the natural coupled frequency of piezoelectric synthetic jet actuators. Different from the traditional piezoelectric vibration synthetic jet (PVSJ) actuator, the thermodynamic environment of the plasma synthetic jet actuator is complex and variable, and an accurate model describing saturation frequency is lacking.…”

Section: Introductionmentioning

confidence: 99%

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A novel model of plasma synthetic jet actuators coupled energy source term model with mechano-acoustical analogy model

Li¹,

Zhang²

2020

J. Phys. D: Appl. Phys.

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The mechanism affecting the saturation frequency of plasma synthetic jet actuators is still unclear, which has led to the great hindrance of the application of plasma synthetic jet actuators on supersonic aircraft. Discharge parameters affecting the saturation frequency of plasma synthetic jet actuator and the average Helmholtz frequency are analyzed based on a novel coupling model in this paper. The model couples the phenomenological energy source term model with the mechano-acoustical analogy model. The Helmholtz frequency at each moment during the formation of the synthetic jet can be calculated. The effects of the electrical energy, the discharge duration and the instantaneous discharge power on the formation of the synthetic jet in a single discharge are investigated. The results show that the average Helmholtz frequency could not be used to evaluate the saturation frequency of the plasma synthetic jet actuator because they have different trends as electrical energy increases. The average Helmholtz frequency increases linearly with the increase of electrical energy, while the saturation frequency decreases in power function. The discharge duration on the microsecond scale and the instantaneous discharge power have little effect on the saturation frequency.

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Section: Physical Modeling Developmentmentioning

confidence: 99%