Simulation_cathode_Part 2.pdf (1.07 MB)
Download fileSimulation of electrooptical measurements of prebreakdown electric fields in water. Part 2. Electric field near cathode streamer
preprint
posted on 2022-03-03, 18:05 authored by Vladimir YassinskiyVladimir Yassinskiy, Yulia Kuznetsova, Sergey Korobeynikov, Denis VaginIn this paper, we continue the analysis of
electrooptical studies of the prebreakdown stage in water in the submicrosecond
range. We consider a cathode streamer developing in a system of the spherical
electrodes. Computer simulation of electric showed that at a constant e = 80, the field strength at the head of the
cathode streamer should not exceed E = 1.9 MV/cm. Taking into account the
nonlinearity of the permittivity e = e(E) made it possible to estimate this field
strength as E ~ 2.4-3.1 MV/cm. It is shown that even with some excess of the
strength over the threshold value (ES ~ 3 MV/cm), at which the state
of dipole saturation is possible; its consideration does not lead to a
noticeable change in the result. Thus, a significant decrease in the field
strength near the cathode streamer compared to the anode streamer was confirmed.
Funding
The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (Research Laboratory "Modeling and data processing of high technologies," the project code is FSUN-2020-0012)
History
Email Address of Submitting Author
yas@inbox.ruORCID of Submitting Author
0000-0003-3323-9010Submitting Author's Institution
Karaganda Technical UniversitySubmitting Author's Country
- Kazakhstan
