hasDescription Test case 2: positive streamers in dry air at 1 bar and 300 K, simulated between planar electrodes in a square domain with a radius and height of 1.25 cm, background electric field of 15 kV/cm, Gaussian distribution of positive ions is placed below the anode, constant initial background density of electrons and ions of 10⁹ m⁻³, no photoionization
