 Introduction and verification of FEDM, an open-source FEniCS-based discharge modelling code - dataset
Plasma Chemical Processes

The dataset contains the data presented in the paper introducing the FEDM (Finite Element Discharge Modelling) code. The FEDM code was developed using the open-source computing platform FEniCS (https://fenicsproject.org). Building on FEniCS, the FEDM code utilises the finite element method to solve partial differential equations. It extends FEniCS with features that allow the automated implementation and numerical solution of fully-coupled fluid-Poisson models, including an arbitrary number of particle balance equations. The code is verified using the method of exact solutions and benchmarking. The physically based examples of a time-of-flight experiment, a positive streamer discharge in atmospheric-pressure air and a low-pressure glow discharge in argon are used as rigorous test cases for the developed modelling code and to illustrate its capabilities. The performance of the code is compared to the commercial software package COMSOL Multiphysics®, and a comparable parallel speed-up is obtained. It is shown that the iterative solver implemented by FEDM performs particularly well on high-performance compute clusters.
glow discharge
streamer discharge
time-of-flight experiment
finite element method
FEniCS
	
Field	Value
Group	
INP
Authors	
Jovanović, NAME_1
Loffhagen, NAME_2
Becker, Markus NAME_3.
Release Date	
2023-04-04
Identifier	
694222be-81e7-4ea8-ad7d-61fd52815694
Permanent Identifier (DOI)	
10.34711/inptdat.668
Permanent Identifier (URI)	
https://www.inptdat.de/node/668
Is supplementing	
10.1088/1361-6595/acc54b
Plasma Source Name	
Time-of-flight experiment
streamer discharge
glow discharge
Plasma Source Application	
basic research
Plasma Source Specification	
DC
low pressure
atmospheric pressure
non-thermal
Plasma Source Properties	

The first case considers a time-of-flight experiment at atmospheric pressure of 760 NAME_4 and a constant gas temperature of 300 K. The configuration consists of two plane-parallel electrodes with a gap distance of 1 mm and a radius of 0.5 mm. The constant field of 3.55 MV/NAME_3 was assumed in order to model the spatiotemporal evolution of an electron cloud.

The second case considers a positive streamer in atmospheric-pressure air and a gas temperature of 300 K. Two electrodes are set 1.25 cm apart, while their radius is 1.25 cm. The constant voltage of -18.75 kV was applied at the powered electrode, while an additional Gaussian seed of ions was introduced ne