Abstract
Successful operation of a multi-stage dielectric-barrier-discharge (DBD) plasma actuator is demonstrated by operating it on voltage one order of magnitude lower than that of a conventional single-stage DBD plasma actuator. An applied voltage waveform of direct current (DC) voltage combined with high-frequency repetitive pulses is generated by a simple power system consisting of a DC power supply and silicon carbide metal-oxide-semiconductor field-effect transistors. The time-averaged flow field obtained by particle image velocimetry indicates that a successively accelerated ionic wind is obtained by the eight-stage DBD plasma actuator. The velocity of the induced ionic wind increases with increasing DC voltage and repetitive pulse frequency. The maximum velocity of approximately 4.5 m s-1 is achieved when the DC voltage of 1500∼ V is applied with the switching frequency of 150∼ kHz, suggesting that the proposed multi-stage DBD plasma actuator induces the same level of ionic wind as a conventional high-voltage-operated single-stage DBD plasma actuator, even with a low voltage.
Original language | English |
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Article number | 43LT01 |
Journal | Journal of Physics D: Applied Physics |
Volume | 53 |
Issue number | 43 |
DOIs | |
Publication status | Published - 2020 Oct 21 |
Externally published | Yes |
Keywords
- atmospheric pressure discharge
- dielectric barrier discharge
- electrohydrodynamics
- low voltage operation
- plasma actuator
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Acoustics and Ultrasonics
- Surfaces, Coatings and Films