Review of investigations of streamers in dense gases and liquids by computer simulation

The supersonic streamer propagation in liquid can be explained by the ionization process in the liquid before the streamer. The strong electric field is required for this process and it is realized due to charge separation in the streamer head. The electric field strength decreases abruptly behind the streamer heard. It leads to electron density decreasing in both the electronegative gases and the high density liquids. The existence of the streamers in such media means that the self-consistent processes determined the streamer radius; electric field inside the streamer is capable to bring to a stop of the fall of the electron density.