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

Plasma-kg

conductedBy

hasMedium

Pure argon Medium
synthetic air Medium

hasOutput

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

hasTopic

basic research Application Field
glow discharge Research Topic
time-of-flight experiment Research Topic

investigates

involves

usesConfiguration

Configuration for abnormal glow discharge: argon at low pressure of 1 Torr, plane-parallel electrodes with the radius of 1 cm set 1 cm apart, exponentially rising voltage with U_0 = -250 V and time constant of 1 ns applied to the powered electrode
Configuration for positive streamer: atmospheric-pressure air, gas temperature of 300 K, two electrodes set 1.25 cm apart with a radius of 1.25 cm, constant voltage of -18.75 kV applied at the powered electrode, additional Gaussian seed of ions introduced near the anode
Configuration for solver: fully coupled Newton solver, with direct linear (MUMPS for FEDM, and PARDISO and MUMPS for COMSOL Multiphysics®) and iterative (gmres with hypre preconditioner) solver; nonlinear solver tolerance: 0.0001; time stepping tolerance: varied for different case studies
Configuration for time-of-flight experiment: atmospheric pressure of 760 Torr, constant gas temperature of 300 K, two plane-parallel electrodes with a gap distance of 1 mm and a radius of 0.5 mm, constant field of 3.55 MV/m

usesMaterialEntity

Gaussian seed of ions

usesMethod

Backward differentiation formula (BDF) Diagnostic Method
Finite element method Diagnostic Method
Fluid-Poisson Model Diagnostic Method
MUMPS Diagnostic Method
PARDISO Diagnostic Method
benchmarking Method
direct linear solver Diagnostic Method
fully coupled Newton solver Diagnostic Method
gmres with hypre preconditioner Diagnostic Method
iterative solver Diagnostic Method
method of exact solutions Method
order-of-accuracy studies Method
time-dependent fluid-Poisson model Diagnostic Method