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Numerical Modelling of Mutual Effect among Nearby Needles in a Multi-Needle Configuration of an Atmospheric Air Dielectric Barrier Discharge

Author

Listed:
  • Xiaojing Wang

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China)

  • Chenguo Yao

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China)

  • Caixin Sun

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China
    Deceased on 25 November 2011.)

  • Qing Yang

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China)

  • Xiaoxing Zhang

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China)

Abstract

A numerical study has been conducted to understand the mutual effect among nearby needles in a multi-needle electrode dielectric barrier discharge. In the present paper, a fluid-hydrodynamic model is adopted. In this model, the mutual effect among nearby needles in a multi-needle configuration of an atmospheric air dielectric barrier discharge are investigated using a fluid-hydrodynamic model including the continuity equations for electrons and positive and negative ions coupled with Poisson’s equation. The electric fields at the streamer head of the middle needle (MN) and the side needles (SNs) in a three-needle model decreased under the influence of the mutual effects of nearby needles compared with that in the single-needle model. In addition, from the same comparison, the average propagation velocities of the streamers from MN and SNs, the electron average energy profile of MN and SNs (including those in the streamer channel, at the streamer head, and in the unbridged gap), and the electron densities at the streamer head of the MN and SNs also decreased. The results obtained in the current paper agreed well with the experimental and simulation results in the literature.

Suggested Citation

  • Xiaojing Wang & Chenguo Yao & Caixin Sun & Qing Yang & Xiaoxing Zhang, 2012. "Numerical Modelling of Mutual Effect among Nearby Needles in a Multi-Needle Configuration of an Atmospheric Air Dielectric Barrier Discharge," Energies, MDPI, vol. 5(5), pages 1-22, May.
    • Handle: RePEc:gam:jeners:v:5:y:2012:i:5:p:1433-1454:d:17747
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    References listed on IDEAS

    as
    1. Xiaojing Wang & Qing Yang & Chenguo Yao & Xiaoxing Zhang & Caixin Sun, 2011. "Dielectric Barrier Discharge Characteristics of Multineedle-to-Cylinder Configuration," Energies, MDPI, vol. 4(12), pages 1-18, December.
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