Comparsion study of different simulation codes for positive streamers

For streamer simulations a range of computational models have been developed by various groups for various purposes. These models differ in dimensionality (2D, 3D), model type (particle, fluid or hybrid approach and further differentiation), their numerical implementation, type of grid and its refinement, and their spatial/temporal discretization. The aim of the present study is to benchmark the results of different simulation codes for axisymmetric single positive streamers in air at 1 bar and 300 K using a fluid model.