Modelling of streamer propagation in dielectric liquids using a dense gas model

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00327223" target="_blank" >RIV/68407700:21220/18:00327223 - isvavai.cz</a>
Result on the web
<a href="http://ocs.ciemat.es/EPS2018PAP/pdf/P4.3007.pdf" target="_blank" >http://ocs.ciemat.es/EPS2018PAP/pdf/P4.3007.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modelling of streamer propagation in dielectric liquids using a dense gas model
Original language description
Ultrafast electrical breakdown in dielectric liquids is of considerable interest for applications in high-voltage insulation. For liquids with high mobility of charged particles, the breakdown takes place on a nanosecond time scale, and its mechanism is similar to the streamer breakdown of gases which is caused by the electron impact ionization of particles, with a distinction that the electron–ion recombination in the streamer channel plays a significant role compared to streamers in gases. Also very high-voltage pulses of sub-ns duration provide an extremely high electrical field in the plasma formation region in the liquid and allow ionization directly in the condensed phase by direct electron impact. Thanks to the sub-nanosecond time scale, the fluid lacks time to expand, and so the discharge is formed directly in the liquid phase. In this contribution we present a study of positive streamer dynamics in dielectric liquid using a dense gas mode.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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