Numerical Simulation of Direct Current Glow Discharge in Air with Experimental Validation

Numerical Simulation of the Characteristics of Electrons in Bar-plate DC Negative Corona Discharge Based on a Plasma Chemical Model

“…A two-dimensional physical model proposed by Pancheshnyi et al [18] for discharge in N 2 -O 2 (9:1) mixed gas under 760 Torr was improved based on the selection of 10 kinds of primary particles from Nahomy's model, which was further employed to analyze electric field distribution, densities of charged particles, reaction rates and other discharge parameters, and the obtained results fairly correspond to the experimental data. Liu et al [19,20] established a fluid-chemical mixed kinetic model for corona discharge under atmospheric pressure and the computed V-I curve and electron temperature curve accorded well with the experiment values carried by Antao [21]. Based on this model, current density, electron density, and positive/negative ion densities distribution are discussed.…”

Numerical simulation on the surface charge accumulation process of epoxy insulator under needle‐plane corona discharge in air

“…The second term on the right-hand side of (14) and 15is the gain of electrons and electron energy due to secondary emission effects; γ p is the secondary emission coefficient, which is set to 0.1 for the cathode and 0 for the anode; ɛ p is the mean energy of the secondary electrons, which is set to 5 eV [13]; v e,th is the electron thermal velocity (m/s). For ions on the surface of electrodes and insulator, the boundary conditions can be described as…”

“…The cross-sections and energy losses of those collision reactions are extracted from papers [17,18]. Some of the reaction rate coefficients are extracted from papers [13]. The N 2 to O 2 ratio is 4 to 1 and the initial electron density is set to 1×10 9 1/m 3 .…”

“…Moreover, some researchers have built the drift-diffusion equations to describe the charge trapping-detrapping process in the insulator bulk [8][9][10][11][12]. In addition, the plasma hydrodynamics model has been widely used to study the gas discharge process [13][14][15][16]. However, few people have combined both the plasma hydrodynamics and charge trapping-detrapping process to do simulations.…”

Simulation on the Surface Charge Behaviors of Epoxy Insulator by Corona Discharge

“…In addition, several scholars have established the drift-diffusion equations for the purpose of describing the charge trappingdetrapping procedure within the bulk of the insulator [8][9][10][11][12]. Moreover, the plasma hydrodynamics models are adopted widely for the purpose of simulating the gas discharge procedure [13][14][15][16]. Nevertheless, very few people have ever tried to combine the charge trapping-detrapping procedure and the plasma hydrodynamics to simulate the surface charge accumulation procedure.…”