Dynamics of energy coupling and thermalization in barrier discharges over dielectric and weakly conducting surfaces on µ s to ms time scales

The paper presents experiments characterizing discharge development and energy coupling in a surface dielectric barrier discharge (SDBD), atmospheric air plasmas over dielectric and weakly conducting surfaces over a wide range ot time scales and electrical conductivities. The experiments are done us...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2014-11, Vol.47 (46), p.465201-18
Main Authors: Leonov, Sergey B, Petrishchev, Vitaly, Adamovich, Igor V
Format: Article
Language:English
Subjects:
Conduction
Dielectric strength
Imaging
Joining
Nanostructure
Polarity
Time
Waveforms
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Summary:The paper presents experiments characterizing discharge development and energy coupling in a surface dielectric barrier discharge (SDBD), atmospheric air plasmas over dielectric and weakly conducting surfaces over a wide range ot time scales and electrical conductivities. The experiments are done using nanosecond pulse (NS) both single polarity and alternating polarity and ac voltage waveforms. Discharge development and mechanisms of coupling with quiescent air are analysed using nanosecond gate camera imaging, schlieren imaging, and laser differential interferometry. The results demonstrate that surface plasma actuator control authority may be significantly increased by using an alternating polarity pulse waveform which is more effective than the removal of surface charge between the pulses using a weakly conducting surface.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/47/46/465201