Pražnjenje u nanosekundama pri atmosferskom pritisku od neuniformne elektrode (vrh) prema ravnoj elektrodi

  • Vasily Y. Kozhevnikov Institute of High Current Electronics
  • Andrey V. Kozyrev Institute of High Current Electronics
  • Aleksandr O. Kokovin Institute of High Current Electronics
  • Vladislav S. Igumnov National Research Tomsk Polytechnic University
Ključne reči: plasma||, ||plazma, numerical simulation||, ||numerička simulacija, atmospheric discharges||, ||atmosferska pražnjenja,

Sažetak


U radu se razmatraju rezultati numeričke simulacije brzog pražnjenja pri atmosferskom pritisku u visoko nehomogenoj konfiguraciji diode tipa vrh‒ravan napunjene smešom azota i kiseonika. Simulacija se zasniva na savremenom hidrodinamičkom modelu pražnjenja plazme, koji takođe uzima u obzir fotojonizaciju gasa. Pokazano je da se, u odsustvu fotojonizujućeg pražnjenja, on razvija slično kao i kod fotojonizacije, sa izuzetkom napona inverzne polarizacije. Teorijski rezultati su konzistentni sa postojećim eksperimentalnim podacima za prostornu strukturu pražnjenja i za karakteristike pražnjenja napona/struje.

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Objavljeno
2019/06/12
Rubrika
Originalni naučni radovi