Comment on "Comparison of six simulation codes for positive streamers in air"(Plasma Sources Sci. Technol. 27 (2018) 095002)

TL;DR

This paper critically examines the discrepancies among six simulation codes for streamer discharges, questioning their convergence and the spatial resolution needed for reliable results in plasma modeling.

Contribution

It highlights significant differences in simulation outcomes using identical models and raises concerns about convergence and resolution requirements.

Findings

Large discrepancies between code results.

Questions on convergence and resolution adequacy.

Implications for reliability of streamer simulations.

Abstract

Recently, a comparison of six codes for streamer discharge simulations were performed in [1]. In this comment, we discuss about the big differences between the results obtained by the different codes using the same deterministic model, and raise questions on the convergence of the codes and the minimum spatial resolution that are required for a converged results.