Advertisement

Russian Electrical Engineering

, Volume 87, Issue 8, pp 476–480 | Cite as

Studying branching of a cathode-directed streamer in air by means of 3D modeling

  • A. A. BeloglovskiiEmail author
Article

Abstract

A cathode-directed streamer in air is modeled using the hypothesis that branching is initiated by large electron avalanches that develop in a strong electric field in the front of streamer head. A series of streamer discharge simulations are carried out using a three-dimensional numerical model. The possibility of streamer branching is shown as a result of the interaction with two electron avalanches that arise in front of its head. They are directed to the sides from streamer propagation direction. Such a mechanism of branching is brought about by the fact, that at the moment of contact with the streamer, the avalanches have already undergone an avalanche–streamer transition or are close to it. The equality of the number of electrons in these avalanches at the moment of contact is not important. If this equality is violated, branching is asymmetric. If one of the avalanches interacting with the streamer is far from the avalanche–streamer transition, it does not trigger perfect branching, but it may produce an underdeveloped branch that does not evolve further. The streamer trajectory then deviates toward a larger avalanche, interacting with it.

Keywords

cathode-directed streamer electron avalanche avalanche–streamer transition branching numerical modeling 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Bortnik, I.M., et al., Elektrofizicheskie osnovy tekhniki vysokikh napryazhenii (Electrical and Physical Foundations of High Voltage Engineering), Vereshchagin, I.P., Ed., Moscow: MPEI, 2010.Google Scholar
  2. 2.
    Timatkov, V.V., Pietsch, G.J., Saveliev, A.B., Sokolova, M.V., and Temnikov, A.G., Influence of solid dielectric on the impulse discharge behavior in a needle-to-plane air gap, J. Phys. D: Appl. Phys., 2005, vol. 38, no. 6.Google Scholar
  3. 3.
    Nijdam, S., Geurts, C.G.C., Van Veldhuizen, E.M., and Ebert, U., Reconnection and merging of positive streamers in air, J. Phys. D: Appl. Phys., 2009, vol. 42, p. 045201.Google Scholar
  4. 4.
    Beloglovskii, A.A. and Rushal’shchikova, A.V., The way to study cathode streamer branching in the air by means of 3D mathematical model, Elektrichestvo, 2016, no. 7.Google Scholar
  5. 5.
    Badaloni, S. and Gallimberti, I., Montecarlo simulation of streamer branching, Proc. 11th Int. Conference on Phenomena in Ionized Gases, Prague, 1973.Google Scholar
  6. 6.
    Beloglovskii, A.A. and Vereshchagin, I.P., 3D mathematical simulation of streamer discharge in the air by considering branching effect: efficient calculation for electric field, Elektrichestvo, 2011, no. 11.Google Scholar
  7. 7.
    Sokolova, M.V. and Sergeev, Yu.G., Generalized data on coefficients of elementary discharge processes in gases, in Sb. statei “Teoriya i praktika elektricheskikh razryadov v energetike” (Collection of Scientific Papers: “Electrical Discharges in Power Engineering: Theory and Practice”), D’yakov, A.F., Ed., Pyatigorsk: YuTsPK RP“Yuzhenergotekhnadzor, 1997.Google Scholar
  8. 8.
    Sergeev, Yu.G., Uchet fotoionizatsii pri matematicheskom modelirovanii gazovogo razryada (Mathematical Simulation of Gas Discharge by Considering Photoionization Process), Moscow: MPEI, 1996.Google Scholar
  9. 9.
    Beloglovskii, A.A. and Il’ina, Yu.G., Numerical calculation of critical parameters of electron avalanche in the air, Fedorovskie chteniya-2015. XLV Mezhdunar. nauch.-prakt. konf. s elementami nauchnoi shkoly. Moskva 11–13 noyabrya 2015 g. (Proc. 45th Int. Sci.- Pract. Conf. with the Elements of Scientific School Fedorovskie Readings-2015, Moscow, Nov. 11–13, 2015), Kudrin, B.I., Ed., Moscow: MPEI, 2015.Google Scholar

Copyright information

© Allerton Press, Inc. 2016

Authors and Affiliations

  1. 1.National Research University Moscow Power Engineering Institute (MPEI)MoscowRussia

Personalised recommendations