
Исследование динамики искрового разряда в воздухе в промежутке острие--плоскость методом теневого фотографирования
Author(s) -
К.И. Алмазова,
А.Н. Белоногов,
В.В. Боровков,
Е.В. Горелов,
И.В. Морозов,
А.А. Тренькин,
С.Ю. Харитонов
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2019.01.46964.178-18
Subject(s) - microchannel , shock wave , nanosecond , materials science , spark gap , plane (geometry) , mechanics , electrode , optics , physics , geometry , laser , mathematics , quantum mechanics
The microchannel structure of a spark discharge in a 1.5-mm-long point–plane gap has been studied by the method of shadow photography. The discharge dynamics (propagation of microchannels from the point into the discharge gap, branching and expansion of the microchannels, formation of a joint front of the spark’s shock wave and its motion) has been observed over a time from several nanoseconds to several hundred nanoseconds. Objects of a half-ring shape have been discovered. They have been identified as semispherical shock waves resulting from the formation of microcraters near sites where the microchannels touch the plane electrode.