Multiscale Plasma Modeling

Lightning phenomena, plasma processing and high voltage technology are governed by similar physical mechanisms. These mechanisms evolve on multiple scales in space and time, frequently ordered in a hierarchical structure. The Multiscale Dynamics group at CWI works on a better understanding, in particular, of rapidly pulsed discharges in air and other media, in collaboration with colleagues in plasma physics, electrical and mechanical engineering, atmospheric electricity and cosmic particle physics. Experimental investigations, theory and numerical simulations complement each other in providing a route to understanding.

Here we provide and describe the codes that we have developed for this purpose. We do this to allow others to use or copy (part of) it, or to extract ideas from it, to give us feedback, and to allow reproduction and checking of (published) results. If you use our codes, please honor our intellectual property by quoting the paper(s) related to the codes, as indicated.

We also provide links to codes and databases of other groups that we have found useful.

• ARCoS: Adaptive Refinement Code of Streamers, a fluid code with a2.5D daptive grid refinement, developed consecutively by C. Montijn, A. Luque, G. Wormeester, W. Hundsdorfer, M. Nool and U. Ebert.
• JANNIS 3d MC
• PumpKin, PumpKin: Pathway redUction Method for Plasma KINetic models, developed by A.H. Markosyan, A. Luque, F.J. Gordillo-Vazquez and U. Ebert.
• Miscellaneous: subroutine for electron nucleus Bremsstrahlung in air by C. Köhn.

• **LXCat**: An open-access website for collecting, displaying, and downloading electron and ion scattering cross sections, swarm parameters (mobility, diffusion coefficient, etc.), reaction rates, energy distribution functions, etc. and other data required for modeling low temperature plasmas.
• strees, strees: Simulation of 3D streamer trees, developed by A. Luque.