Simulation model for the propagation of second mode streamers in dielectric liquids using the Townsend--Meek criterion

Abstract

A simulation model for second mode positive streamers in dielectric liquids is presented. Initiation and propagation is modeled by an electron-avalanche mechanism and the Townsend--Meek criterion. The electric breakdown is simulated in a point-plane gap, using cyclohexane as a model liquid. Electrons move in a Laplacian electric field arising from the electrodes and streamer structure, and turn into electron avalanches in high-field regions. The Townsend--Meek criterion determines when an avalanche is regarded as a part of the streamer structure. The results show that an avalanche-driven breakdown is possible, however, the inception voltage is relatively high. Parameter variations are included to investigate how the parameter values affect the model.

References in corpus (1)

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Cited by in corpus (3)

• Photoionization model for streamer propagation mode change in simulation model for streamers in dielectric liquids
• Conductivity and capacitance of streamers in avalanche model for streamer propagation in dielectric liquids
• Cerman: Software for simulating streamer propagation in dielectric liquids based on the Townsend-Meek criterion