Experimental characterization of a pulsed plasma jet

Todd M. Reedy, Nachiket V. Kale, J. Craig Dutton, Gregory S. Elliott

Research output: Contribution to journalArticlepeer-review


An experimental characterization of a pulsed plasma jet to determine its potential authority as a supersonic flow-control actuator was studied. A high-voltage (HV) trigger of approximately 3.6 kV was used to ionize the air gap between an anode and a cathode. The subsequent electric arc discharge deposits energy from a capacitor charged to a voltage near 570 V. Three capacitor sizes were examined: 0.25, 2, and 25 μF with calculated energy additions of 41 mJ, 330 mJ, and 4.0 J, respectively. Schlieren images and particle image velocimetry measurements revealed that the jet structure, local velocity, penetration depth, and exhaust duration are strongly dependent on capacitance, and thus energy deposition. Peak velocities were measured to be 130, 320, and 496 m/s for the three capacitances tested. A pulsating jet behavior was observed for each capacitor case and is reasoned to be the result of cavity wave dynamics.

Original languageEnglish (US)
Pages (from-to)2027-2031
Number of pages5
JournalAIAA journal
Issue number8
StatePublished - Aug 2013

ASJC Scopus subject areas

  • Aerospace Engineering


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