2010
DOI: 10.1088/0960-1317/20/7/075004
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Synthetic jets based on micro magneto mechanical systems for aerodynamic flow control

Abstract: A magneto-mechanical micro-actuator providing an axisymmetric synthetic microjet for active flow control was designed, fabricated and characterized. The micro-actuator consists of an enclosed cavity with a small orifice in one face and a high flexible elastomeric (PDMS) membrane in the opposite one. The membrane vibration is achieved using a magnetic actuation chosen for its capacity for providing large out of plane displacements and forces necessary for the performances aimed for. The paper presents first num… Show more

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Cited by 22 publications
(8 citation statements)
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“…Figure 2(e) shows the axial velocities of the air in the microjet for actuation voltages from 3 V to 16 V. We were able to obtain a maximum axial velocity of about 42 m s −1 at a distance of 1 mm from the nozzle (figure 2(e)). Similar velocities had been demonstrated earlier using synthetic jet actuators [17,21]. We also measured the average jet velocity at a distance of 6 mm from the nozzle using a hot wire anemometer.…”
Section: Microjet Calibrationsupporting
confidence: 55%
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“…Figure 2(e) shows the axial velocities of the air in the microjet for actuation voltages from 3 V to 16 V. We were able to obtain a maximum axial velocity of about 42 m s −1 at a distance of 1 mm from the nozzle (figure 2(e)). Similar velocities had been demonstrated earlier using synthetic jet actuators [17,21]. We also measured the average jet velocity at a distance of 6 mm from the nozzle using a hot wire anemometer.…”
Section: Microjet Calibrationsupporting
confidence: 55%
“…Pulsed jets [11,12] and synthetic jets of air that have been developed by several researchers for applications such as flow control [13][14][15][16][17] and heat transfer [18][19][20][21] could also be used for force application. The pulsed air jets have been shown to produce flow velocities of 150 m s −1 [11] and 200 m s −1 to 300 m s −1 [12] with pressurized air.…”
Section: Introductionmentioning
confidence: 99%
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“…[6][7][8][9] In contrast, SJAs based on MEMS technologies [10][11][12] do not present satisfactory performance for flow control applications, essentially because of a deficit of velocity due to a very small variation of the cavity volume. A synthetic jet based on a micro-magneto-mechanical system 13 with a full size less than 1 cm 3 and a peak jet velocity of 50 m/s represents existing peak performance of a MEMS SJA, which still falls short of the requirements of this study.…”
Section: Introductionmentioning
confidence: 98%