Cavity Effect of Synthetic Jet Actuators Based on Piezoelectric Diaphragm

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An active flow control technology known as synthetic jet actuator (SJA) is a zero-net mass-flux device to create pulsed jet that produces momentum to its surroundings and uses a vibrating diaphragm inside the cavity to generate an oscillatory flow through a small orifice. The performance of SJA depends on the design of an orifice and cavity, and oscillating membrane. SJA design based on piezoelectric diaphragm used in this project because of their size, lightweight, no need for external air supply, without the pipe complex, fast response time and low power consumption. This paper describes the cavity effect to SJA designs and experiments were performed to determine the air jet velocity produced through the orifice using a hot-wire anemometer at a different cavity thickness. The results demonstrate that the jet velocity increase would be better if the cavity thickness is reduced. However, more studies are needed to optimize the size of cavity and orifice for appropriate applications.

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Edited by:

R. Varatharajoo, E. J. Abdullah, D. L. Majid, F. I. Romli, A. S. Mohd Rafie and K. A. Ahmad

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85-90

Citation:

M. N. Dahalan et al., "Cavity Effect of Synthetic Jet Actuators Based on Piezoelectric Diaphragm", Applied Mechanics and Materials, Vol. 225, pp. 85-90, 2012

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November 2012

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$38.00

[1] Seifert A., A. Darabi, I. Wygnanski, Delay of airfoil stall by periodic excitation, AIAA Journal of Aircraft, 33 (4), (1996) 691-698.

DOI: https://doi.org/10.2514/3.47003

[2] Gilarranz J., Rediniotis O., Compact, High- Power Synthetic Jet Actuators for Flow Separation Control, AIAA 2001-0737.

DOI: https://doi.org/10.2514/6.2001-737

[3] Kevin B., Philip. and Rhett J., Flow Control of a NACA 0015 Airfoil Using a Chord-wise Array of Synthetic Jets, AIAA 2003-0061.

DOI: https://doi.org/10.2514/6.2003-61

[4] Tuck A. and Soria J., Active Flow Control over a NACA 0015 Airfoil using a ZNMF Jet, 15th Australasian Fluid Mechanics Conference, University of Sydney, Australia (2004).

[5] Smith B., Glezer A., Vectoring and Small Scale Motions Effected in Free Shear Flows Using Synthetic Jet Actuators, AIAA 1997-0213.

DOI: https://doi.org/10.2514/6.1997-213

[6] Guarino J.R. and Manno V.P., Characterization of a Laminar Jet Impingement Cooling in Portable Computer Applications, 17th IEEE Semi-Therm. Symposium (2001).

DOI: https://doi.org/10.1109/stherm.2001.915133

[7] Campbell, J.S., Black, W.Z., Glezer, A. and Hartley, J.G., Thermal Management of a Laptop Computer with Synthetic Air Microjets, Intersociety Conference on Therm. Phenomenon, IEEE, (1998) pp.43-50.

DOI: https://doi.org/10.1109/itherm.1998.689518

[8] Crook, A., Sadri, A.M. and Wood, N.J., The Development and Implementation of Synthetic Jets for the Control of Separated Flow, AIAA 1999–3176.

[9] Holman R. Gallas Q. Carroll B. and Cattafesta L., Interaction of Adjacent Synthetic Jets in an Airfoil Separation Control Application, AIAA 2003-3709.

DOI: https://doi.org/10.2514/6.2003-3709

[10] Parekh, D.E., Glezer, A., AVIA: Adaptive Virtual Aerosurface, AIAA paper 2000-2474.

DOI: https://doi.org/10.2514/6.2000-2474

[11] Holman R., Utturkar Y., Mittal R., Smith B.L. and Cattafesta L., Formation Criterion for Synthetic Jets, AIAA Journal 2005, 0001-1452 vol. 43 no. 10.

DOI: https://doi.org/10.2514/1.12033

[12] Ugrina S., Experimental Analysis and Analytical Modelling of Synthetic Jet Cross Flow Interactions, PhD Thesis, Department of Aerospace Engineering, University of Maryland (2007).

[13] Mittal R., Rampunggoon P., Interaction of a Synthetic Jet with a Flat Plate Boundary Layer, AIAA Paper 2001-2773.

DOI: https://doi.org/10.2514/6.2001-2773

[14] Yang A.S., Design analysis of a piezo electrically driven synthetic jet actuator, Journal of Smart Materials and Structures, 18 - 125004 (2009).

[15] Manu J., Bhalchandra P., Amit A., A numerical investigation of effects of cavity and orifice parameters on the characteristics of a synthetic jet flow, Journal of Sensors and Actuators A: Physical 165 (2011) 351–366.

DOI: https://doi.org/10.1016/j.sna.2010.11.001