Development of synthetic Jet Actuator for Active Flow control

Ramesh, G and Sajeer, Ahmed (2009) Development of synthetic Jet Actuator for Active Flow control. Project Report. National Aerospace Laboratories, Bangalore.

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    Abstract

    A synthetic jet has been designed and developed that uses an amplified type Piezo Stack actuator and demonstrative experiments were carried out to characterize the flow field of synthetic jet as well as application of this in flow control. A single component hotwire was used to obtain the mean and spectral component of velocities under no cross flow conditions. A systematic study was carried out varying the excitation, waveform and cavity volume to obtain the high jet velocity from the Synthetic jet. It was found that the square wave drive provided the highest jet exit velocity under the same conditions. The cavity volume does influence the maximum jet velocity however the maximum jet velocity was always found to occur at the same frequency. The experiments carried out on a NACA 4415 airfoil clearly demonstrated the effectiveness of the Synthetic Jet Actuator in the control of flow separation.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: Active flow control, Synthetic jet, NACA-4415 airfoil
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Experimental Aerodynamics Division, Experimental Aerodynamics Division
    Depositing User: Smt Bhagya Rekha KA
    Date Deposited: 18 Nov 2011 11:06
    Last Modified: 18 Nov 2011 11:06
    URI: http://nal-ir.nal.res.in/id/eprint/9983

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