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    Influence of air flow parameters on nanosecond repetitively pulsed discharges in a pin-annular electrode configuration

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    Heitz-2015-R1-submitted.pdf
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    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Heitz, Sylvain A
    Moeck, Jonas P
    Schuller, Thierry
    Veynante, Denis
    Lacoste, Deanna cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering Program
    Date
    2016-03-16
    Online Publication Date
    2016-03-16
    Print Publication Date
    2016-04-20
    Permanent link to this record
    http://hdl.handle.net/10754/621743
    
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    Abstract
    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.
    Citation
    Heitz SA, Moeck JP, Schuller T, Veynante D, Lacoste DA (2016) Influence of air flow parameters on nanosecond repetitively pulsed discharges in a pin-annular electrode configuration. J Phys D: Appl Phys 49: 155205. Available: http://dx.doi.org/10.1088/0022-3727/49/15/155205.
    Sponsors
    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.
    Publisher
    IOP Publishing
    Journal
    Journal of Physics D: Applied Physics
    DOI
    10.1088/0022-3727/49/15/155205
    ae974a485f413a2113503eed53cd6c53
    10.1088/0022-3727/49/15/155205
    Scopus Count
    Collections
    Articles; Mechanical Engineering Program; Clean Combustion Research Center

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