Statistical analysis of branching angles of streamer discharges on the liquid surface

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The experimental investigation of atmospheric pressure streamer discharges on the water surface at two different polarities of voltage at the high-voltage electrode revealed several noteworthy findings. The discharge structure was photoregistered and subjected to statistical analysis. The results demonstrated that the discharges possess a complex structure comprising numerous branching channels. It was determined that the number of branching channels in discharges of negative polarity is approximately six times higher than the number of branching channels of positive polarity. Conversely, the mean branching angle of positive discharges is greater than that of negative polarity discharges. No branching angles exceeding 90° were observed, nor were any instances of intersection between different branches identified.

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作者简介

D. Vyalukh

Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics

Email: dubinov-ae@yandex.ru
俄罗斯联邦, Sarov

V. Dekhtyar

Sarov Institute of Physics and Technology

Email: dubinov-ae@yandex.ru
俄罗斯联邦, Sarov

A. Dubinov

Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics; Sarov Institute of Physics and Technology

编辑信件的主要联系方式.
Email: dubinov-ae@yandex.ru
俄罗斯联邦, Sarov; Sarov

I. Lvov

Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics

Email: dubinov-ae@yandex.ru
俄罗斯联邦, Sarov

S. Sadovoy

Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics

Email: dubinov-ae@yandex.ru
俄罗斯联邦, Sarov

L. Senilov

Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics

Email: dubinov-ae@yandex.ru
俄罗斯联邦, Sarov

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2. Fig. 1. Installation diagram for generating streamer discharges on the water surface: 1 – ring grounded electrode; 2 – pin high–voltage electrode; 3 - dielectric vessel; 4 – spark gap.

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3. Fig. 2. Oscillogram of the discharge current.

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4. 3. Photo images of discharges: (a) with a negative voltage polarity on a high-voltage electrode; (b) with a positive polarity.

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5. Fig. 4. Fragment of Fig. 3a, showing the numbering of the branching points and the method of measuring the branching angle.

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6. 5. Histograms showing the number of branching points having an angle from the corresponding range: (a) with a negative voltage polarity on a high-voltage electrode; (b) with a positive polarity.

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