81 citations · 560 across the 17 of their papers we have counts for
17 papers
Investigation of positive streamers in CO: experiments and 3D particle-in-cell simulations
Xiaoran Li, Siebe Dijcks, Anbang Sun +2
We investigate the propagation of positive streamers in CO through 3D particle-in-cell simulations, which are qualitatively compared against experimental results at 50 mbar. Th…
Vlasov Simulation of Emissive Plasma Sheath with Energy-Dependent Secondary Emission Coefficient and Improved Modeling for Dielectric Charging Effects
Guang-Yu Sun, Shu Zhang, Bao-Hong Guo +2
A one dimensional Vlasov Poisson simulation code is employed to investigate the plasma sheath considering electron induced secondary electron emission (SEE) and backscattering. The…
Quantitative modeling of streamer discharge branching in air
Zhen Wang, Siebe Dijcks, Yihao Guo +5
Streamer discharges are the primary mode of electric breakdown of air in lightning and high voltage technology. Streamer channels branch many times, which determines the developing…
On the Ohmic-dominant heating mode of capacitively-coupled plasma inverted by boundary electron emission
Shu Zhang, Guang-Yu Sun, Jian Chen +3
Electron emission from the boundary is ubiquitous in capacitively coupled plasma (CCP) and precipitates nonnegligible influences on the discharge properties. Here we present the PI…
A computational study of steady and stagnating positive streamers in N2-O2 mixtures
Xiaoran Li, Baohong Guo, Anbang Sun +2
In this paper, we address two main topics: steady propagation fields for positive streamers in air and streamer deceleration in fields below the steady propagation field. We genera…
A comparison of particle and fluid models for positive streamer discharges in air
Zhen Wang, Anbang Sun, Jannis Teunissen
Both fluid and particle models are commonly used to simulate streamer discharges. In this paper, we quantitatively study the agreement between these approaches for axisymmetric and…
On the electron sheath theory and its applications in plasma-surface interaction
Guang-Yu Sun, Zhang Shu, An-Bang Sun +1
The electron sheath is a particular electron-rich sheath with negative net charges where plasma potential is lower than the biased electrode. Here an improved understanding of elec…
Comparing simulations and experiments of positive streamers in air: steps toward model validation
Xiaoran Li, Siebe Dijcks, Sander Nijdam +3
We compare simulations and experiments of single positive streamer discharges in air at 100 mbar, aiming towards model validation. Experimentally, streamers are generated in a plat…
Unveiling the role of dielectric trap states on capacitively coupled radio-frequency plasma discharge: dynamic charging behaviors
Shu Zhang, Guang-Yu Sun, Volčokas Arnas +2
The influence of charge trap states in the dielectric boundary material on capacitively coupled radio frequency plasma discharge is investigated with theory and Particle in cell/Mo…
A Computational Study of Negative Surface Discharges: Characteristics of Surface Streamers and Surface Charges
Xiaoran Li, Anbang Sun, Jannis Teunissen
We investigate the dynamics of negative surface discharges in air through numerical simulations with a 2D fluid model. A geometry consisting of a flat dielectric embedded between p…
A computational study of positive streamers interacting with dielectrics
Xiaoran Li, Anbang Sun, Guanjun Zhang +1
We use numerical simulations to study the dynamics of surface discharges, which are common in high-voltage engineering. We simulate positive streamer discharges that propagate towa…
Intense boundary emission destroys normal radio-frequency plasma sheath
Guang-Yu Sun, An-Bang Sun, Guan-Jun Zhang
Plasma sheath is the non-neutral space charge region that isolates bulk plasma from boundary. Radio-frequency (RF) sheathes are formed when applying RF voltage to electrodes. Gener…
On the role of secondary electron emission in capacitively coupled radio frequency plasma sheath: a theoretical ground
Guang-Yu Sun, Han-Wei Li, An-Bang Sun +5
We propose a theoretical ground for emissive capacitively coupled radio-frequency plasma sheath under low pressure. The rf sheath is assumed to be collisionless, and oscillates wit…
Advanced fluid modelling and PIC/MCC simulations of low-pressure ccrf discharges
Markus M. Becker, Hanno Kählert, Anbang Sun +2
Comparative studies of capacitively coupled radio-frequency discharges in helium and argon at pressures between 10 and 80 Pa are presented applying two different fluid modelling ap…
The inception of pulsed discharges in air: simulations in background fields above and below breakdown
Anbang Sun, Jannis Teunissen, Ute Ebert
We investigate discharge inception in air, in uniform background electric fields above and below the breakdown threshold. We perform 3D particle simulations that include a natural…
A time scale for electrical screening in pulsed gas discharges
Jannis Teunissen, Anbang Sun, Ute Ebert
The Maxwell time is a typical time scale for the screening of an electric field in a medium with a given conductivity. We introduce a generalization of the Maxwell time that is val…
Why isolated streamer discharges hardly exist above the breakdown field in atmospheric air
A. B. Sun, J. Teunissen, U. Ebert
We investigate streamer formation in the troposphere, in electric fields above the breakdown threshold. With fully three-dimensional particle simulations, we study the combined eff…