TY - JOUR
T1 - Influence of air flow parameters on nanosecond repetitively pulsed discharges in a pin-annular electrode configuration
AU - Heitz, Sylvain A
AU - Moeck, Jonas P
AU - Schuller, Thierry
AU - Veynante, Denis
AU - Lacoste, Deanna
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This study has been supported by the Agence Nationale de la Recherche (ANR) and the Deutsche Forschungsgemeinschaft (DFG) through the DRACO project (grant numbers ANR-13-IS09-0004, MO 2551/1). The authors would also like to thank the Ecole Normale Superieure (ENS) de Cachan, for the stipend of Sylvain Heitz.
PY - 2016/3/16
Y1 - 2016/3/16
N2 - The effect of various air flow parameters on the plasma regimes of nanosecond repetitively pulsed (NRP) discharges is investigated at atmospheric pressure. The two electrodes are in a pin-annular configuration, transverse to the mean flow. The voltage pulses have amplitudes up to 15 kV, a duration of 10 ns and a repetition frequency ranging from 15 to 30 kHz. The NRP corona to NRP spark (C-S) regime transition and the NRP spark to NRP corona (S-C) regime transition are investigated for different steady and harmonically oscillating flows. First, the strong effect of a transverse flow on the C-S and S-C transitions, as reported in previous studies, is verified. Second, it is shown that the azimuthal flow imparted by a swirler does not affect the regime transition voltages. Finally, the influence of low frequency harmonic oscillations of the air flow, generated by a loudspeaker, is studied. A strong effect of frequency and amplitude of the incoming flow modulation on the NRP plasma regime is observed. Results are interpreted based on the cumulative effect of the NRP discharges and an analysis of the residence times of fluid particles in the inter-electrode region. © 2016 IOP Publishing Ltd.
AB - The effect of various air flow parameters on the plasma regimes of nanosecond repetitively pulsed (NRP) discharges is investigated at atmospheric pressure. The two electrodes are in a pin-annular configuration, transverse to the mean flow. The voltage pulses have amplitudes up to 15 kV, a duration of 10 ns and a repetition frequency ranging from 15 to 30 kHz. The NRP corona to NRP spark (C-S) regime transition and the NRP spark to NRP corona (S-C) regime transition are investigated for different steady and harmonically oscillating flows. First, the strong effect of a transverse flow on the C-S and S-C transitions, as reported in previous studies, is verified. Second, it is shown that the azimuthal flow imparted by a swirler does not affect the regime transition voltages. Finally, the influence of low frequency harmonic oscillations of the air flow, generated by a loudspeaker, is studied. A strong effect of frequency and amplitude of the incoming flow modulation on the NRP plasma regime is observed. Results are interpreted based on the cumulative effect of the NRP discharges and an analysis of the residence times of fluid particles in the inter-electrode region. © 2016 IOP Publishing Ltd.
UR - http://hdl.handle.net/10754/621743
UR - https://iopscience.iop.org/article/10.1088/0022-3727/49/15/155205
UR - http://www.scopus.com/inward/record.url?scp=84962292564&partnerID=8YFLogxK
U2 - 10.1088/0022-3727/49/15/155205
DO - 10.1088/0022-3727/49/15/155205
M3 - Article
SN - 0022-3727
VL - 49
SP - 155205
JO - Journal of Physics D: Applied Physics
JF - Journal of Physics D: Applied Physics
IS - 15
ER -