Experimental study on dynamic performance of plasma synthetic jet under continuous actuation

Abstract

The dynamic performance of the typical spark discharge plasma synthetic jet (SPJ) has been studied. The dynamic change of the SPJ jet velocity was measured by a dynamic pressure sensor in different loading electric parameters and structure parameters of the actuator. The experimental results showed that the jet speed waveform of SPJ was similar to sine wave. The SPJ peak velocity increased with the rise of the loading voltage amplitude, duty cycle and electrode gap, but it decreased with the increase of the loading frequency and SPJ orifice diameter. There was a best cavity volume for SPJ to achieve the maximum peak velocity.