Positive and negative streamers in ambient air: modelling evolution and velocities
Positive and negative streamers in ambient air: modelling evolution and velocities
We simulate short positive and negative streamers in air at standard temperature and pressure.They evolve in homogeneous electric fields or emerge from needle electrodes with voltages of 10 to 20 kV.The streamer velocity at given streamer length depends only weakly on the initial ionization seed, except in the case of …