Spatially hybrid computations for streamer discharges: II. Fully 3D simulations

Details Spatially hybrid computations for streamer discharges: II. Fully 3D simulations Spatially hybrid computations for streamer discharges: II. Fully 3D simulations

2011-03-10

arxiv.org/abs/1103.2148v1

Journal Computational Physics 231, 1020-1050 (2012)

Physics

Plasma Physics

Scientific paper

10.1016/j.jcp.2011.07.023

We recently have presented first physical predictions of a spatially hybrid model that follows the evolution of a negative streamer discharge in full three spatial dimensions; our spatially hybrid model couples a particle model in the high field region ahead of the streamer with a fluid model in the streamer interior where electron densities are high and fields are low. Therefore the model is computationally efficient, while it also follows the dynamics of single electrons including their possible run-away. Here we describe the technical details of our computations, and present the next step in a systematic development of the simulation code. First, new sets of transport coefficients and reaction rates are obtained from particle swarm simulations in air, nitrogen, oxygen and argon. These coefficients are implemented in an extended fluid model to make the fluid approximation as consistent as possible with the particle model, and to avoid discontinuities at the interface between fluid and particle regions. Then two splitting methods are introduced and compared for the location and motion of the fluid-particle-interface in three spatial dimensions. Finally, we present first results of the 3D spatially hybrid model for a negative streamer in air.

Affiliated with

Also associated with

No associations

Rating

Spatially hybrid computations for streamer discharges: II. Fully 3D simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spatially hybrid computations for streamer discharges: II. Fully 3D simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatially hybrid computations for streamer discharges: II. Fully 3D simulations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-429444