Variable-Frequency Fluidic Oscillator Driven by a Piezoelectric Bender

Gregory, James W.; Gnanamanickam, Ebenezer P.; Sullivan, John P.; Raghu, S.

doi:10.2514/1.44078

Cited by 34 publications

(13 citation statements)

References 45 publications

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“…Gregory et al [35] used a piezoelectric bender to drive the switching process, while Culley [18] used a range of pressure input devices such as solenoid valves. Koklu and Melton [48] also used solenoid valves to drive the oscillation frequency for phase-locked PIV studies.…”

Section: Recent Fluidic Oscillator Characterization and Developmentmentioning

confidence: 99%

A Review of Fluidic Oscillator Development and Application for Flow Control

Gregory

Tomac

2013

43rd Fluid Dynamics Conference

120

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This review provides a detailed discussion of the historical development of fluidic oscillators and their application to flow control. Fluidic oscillators were initially developed in the 1960's for a variety of applications, and have seen resurgent interest for their suitability for modern flow control applications. The devices produce an oscillating jet of fluid over a wide fan angle and have no moving parts, making them an attractive actuator concept. This review aims to highlight the most important historical papers of relevance to modern fluidic oscillator development. The reviewed works will extend from the early 1960's to the most recent investigations, with a focus on the fundamental operating mechanisms of fluidic oscillators. The authors present this review as a short synopsis of fluidic oscillators for flow control, while a more comprehensive review will be submitted for archival publication in the near future.

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Section: Recent Fluidic Oscillator Characterization and Developmentmentioning

confidence: 99%

A Review of Fluidic Oscillator Development and Application for Flow Control

Gregory

Tomac

2013

43rd Fluid Dynamics Conference

120

View full text Add to dashboard Cite

show abstract

“…The other, less obvious but simpler oscillator layout first discussed by Spyropulos (1964) simply connects by the feedback channel the two control terminals X 1 and X 2 . The latter was recently used in the oscillator that made (Gregory et al 2009). In both feedback layouts, it is usual to leave the shifting of phase in the loop to the velocity of fluid flow in the loop -requiring no special devices (unless it is requested to have the oscillation frequency very low, which is not the case here).The frequency of the oscillation is simply adjusted by varying the length of the feedback loop channel.…”

Section: Methodsmentioning

confidence: 99%

Design of an airlift loop bioreactor and pilot scales studies with fluidic oscillator induced microbubbles for growth of a microalgae Dunaliella salina

Zandi²,

et al. 2011

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“…Some initial insight was provided by a few recent studies. Gregory et al (2009) employed a secondary system (i.e., a piezoelectric bender) to control the jet oscillations which provided them with an external trigger signal. However, with this system, the oscillations were not controlled by the natural internal dynamics.…”

Section: Introductionmentioning

confidence: 99%