A lumped-element mathematical model of the operation of a synthetic jet actuator driven by a thin piezoelectric disk is both analytically and numerically investigated to obtain information about the frequency response of the device. It is shown that the actuator behaves as a two-coupled oscillator system, and simple relationships are given to predict the two peak frequencies, corresponding to the modified Helmholtz and first-mode structural resonance frequencies. The model is validated through experimental tests carried out on three devices having different mechanical and geometrical characteristics, designed primarily to achieve an increasing coupling strength. A strict agreement between overall theoretical scaling laws and numerical computations is also found.


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    Title :

    Modeling and Experimental Validation of the Frequency Response of Synthetic Jet Actuators


    Contributors:

    Published in:

    AIAA Journal ; 52 , 8 ; 1733-1748


    Publication date :

    2014-08-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






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