streamer discharge
Plasma
Plasma-kg
diagnosedUsing
- Fluid-Poisson Model Diagnostic Method
- Plasma Chemical Model Diagnostic Method
- time-dependent and spatially two-dimensional fluid-Poisson model Diagnostic Method
generatedBy
- single-filament dielectric barrier discharge (DBD) Plasma Source
hasDescription
hasProperty
- Properties of the modeled plasma, including the spatiotemporal evolution of the electron number density, electric current, applied, memory and gap voltage, the spatial distribution of the number density of electrons and argon excited atoms, the electric field, electron production and loss rates, and surface charge density distribution
- Three test cases for positive streamers in dry air at 1 bar and 300 K. Discharges are simulated between planar electrodes in a square domain with a radius and height of 1.25 cm. A background electric field of 15 kV/cm is present, which is well below the breakdown value. To locally enhance the electric field to values above the breakdown threshold, a Gaussian distribution of positive ions is placed below the anode. First test case: constant initial background density of electrons and Ions of 10¹³ m⁻³, no photoionization; second test case: constant initial background density of electrons and ions of 10⁹ m⁻³, no photoionization; third test case: constant initial background density of electrons and ions of 10⁹ m⁻³, photoionization included.