Towards a fully kinetic 3D electromagnetic particle-in-cell model of streamer formation and dynamics in high-pressure electronegative gases

Rose, D. V.; Welch, D. R.; Clark, R. E.; Thoma, C.; Zimmerman, W. R.; Bruner, N.; Rambo, P. K.; Atherton, B. W.
September 2011
Physics of Plasmas;Sep2011, Vol. 18 Issue 9, p093501
Academic Journal
Streamer and leader formation in high pressure devices is dynamic process involving a broad range of physical phenomena. These include elastic and inelastic particle collisions in the gas, radiation generation, transport and absorption, and electrode interactions. Accurate modeling of these physical processes is essential for a number of applications, including high-current, laser-triggered gas switches. Towards this end, we present a new 3D implicit particle-in-cell simulation model of gas breakdown leading to streamer formation in electronegative gases. The model uses a Monte Carlo treatment for all particle interactions and includes discrete photon generation, transport, and absorption for ultra-violet and soft x-ray radiation. Central to the realization of this fully kinetic particle treatment is an algorithm that manages the total particle count by species while preserving the local momentum distribution functions and conserving charge [D. R. Welch, T. C. Genoni, R. E. Clark, and D. V. Rose, J. Comput. Phys. 227, 143 (2007)]. The simulation model is fully electromagnetic, making it capable of following, for example, the evolution of a gas switch from the point of laser-induced localized breakdown of the gas between electrodes through the successive stages of streamer propagation, initial electrode current connection, and high-current conduction channel evolution, where self-magnetic field effects are likely to be important. We describe the model details and underlying assumptions used and present sample results from 3D simulations of streamer formation and propagation in SF6.


Related Articles

  • Dust cluster explosion. Saxena, Vikrant; Avinash, K.; Sen, A. // Physics of Plasmas;Sep2012, Vol. 19 Issue 9, p093706 

    A model for the dust cluster explosion where micron/sub-micron sized particles are accelerated at the expense of plasma thermal energy, in the afterglow phase of a complex plasma discharge is proposed. The model is tested by molecular dynamics simulations of dust particles in a confining...

  • Using field emission to control the electron energy distribution in high-pressure microdischarges at microscale dimensions. Li, Yingjie; Go, David B. // Applied Physics Letters;12/2/2013, Vol. 103 Issue 23, p234104 

    Particle simulations of high-pressure microdischarges at gaps below 10 μm show that the electron energy distribution becomes non-continuous, with discrete peaks corresponding to specific inelastic collisions. The relative magnitude of these peaks and shape of the energy distribution can be...

  • Particle-in-cell simulation of an electronegative plasma under direct current bias studied in a large range of electronegativity. Oudini, N.; Raimbault, J.-L.; Chabert, P.; Meige, A.; Aanesland, A. // Physics of Plasmas;Apr2013, Vol. 20 Issue 4, p043501 

    A one-dimensional electronegative plasma situated between two symmetrical parallel electrodes under DC bias is studied by Particle-In-Cell simulation with Monte Carlo Collisions. By varying the electronegativity α≡n-/ne from the limit of electron-ion plasmas (negative ion free) to...

  • A kinetic model for collisional effects in dense adsorbed gas layers. Barbante, Paolo; Frezzotti, Aldo; Gibelli, Livio; Giordano, Domenico // AIP Conference Proceedings;5/20/2011, Vol. 1333 Issue 1, p458 

    The effects of adsorbed gas layers on gas-surface interaction is investigated by a kinetic model based on the Enskog-Vlasov equation. The onset of collisional effects in the gas layer is studied by equilibrium simulations. The effects of adsorption on the gas-wall friction forces is investigated...

  • Elastic constants of solids at high pressures. Krasil'nikov, O.; Vekilov, Yu.; Mosyagin, I. // Journal of Experimental & Theoretical Physics;Aug2012, Vol. 115 Issue 2, p237 

    The isothermal and adiabatic nth-order ( n ≥ 2) elastic constants of a loaded crystal are defined. These constants fully determine the behavior of solids at an arbitrary load and are controlled by both an interatomic interaction and an applied load. Expressions that relate these constants...

  • Collision-induced absorption in the second overtone band of H2. Abu-Kharma, M. // Canadian Journal of Physics;Apr2012, Vol. 90 Issue 4, p339 

    The second overtone band of H2-H2 spectra at 77 K were recorded for gas densities between 350 and 1000 amg (1 amg = 44.614 981 mol/m3) with a 2 m stainless steel high-pressure transmission-type absorption cell. The profile analyses of these spectra were carried out using the Birnbaum-Cohen line...

  • Molecular Dynamics Modeling of Hypersonic Gas-Phase and Gas-Surface Reactions. Schwartzentruber, T. E.; Norman, P.; Valentini, P. // AIP Conference Proceedings;5/20/2011, Vol. 1333 Issue 1, p839 

    Efforts to use molecular dynamics (MD) to develop both non-equilibrium dissociation models required in the shock layer as well as gas-surface interaction models specifically for surface catalysis will be summarized. First, an accelerated MD algorithm for dilute gases is presented, called the...

  • Simulations of the ion current to a probe in plasma with allowance for ionization and ion-neutral collisions: I. Spherical probe. Sysun, V.; Ignakhin, V. // Plasma Physics Reports;Feb2014, Vol. 40 Issue 2, p101 

    The ion current to a spherical probe is considered with allowance for volume ionization, ion-neutral collisions, and the ion orbital moment. A model based on the molecular dynamics method and applicable for a wide range of plasma parameters is proposed: r/λ = 0.001-100, λ/λ = 0.001-100,...

  • Collision barrier effects on the bulk flow in a random suspension. Dance, S.L.; Climent, E.; Maxey, M.R. // Physics of Fluids;Mar2004, Vol. 16 Issue 3, p828 

    Simplified models are often used for the short-range interaction of spherical particles in dilute, liquid–solid suspensions. These may range from simple collision barriers to a more detailed inclusion of viscous lubrication forces. Results are given to illustrate the sensitivity of mean...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics