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Title: Simulation of surface discharge dynamics by means of cellular automata

Abstract

A dynamic model of a creeping discharge over a dielectric surface is presented. A discharge area (above a dielectric sheet separating a metal needle from a ground plain electrode) is presented as a system of gas sphere cells covering the dielectric. A discharge tree (conducting cluster) is represented by a nonlinear circuit consisting of capacitances, nonlinear conductances, and controlled sources. The sources simulate the potential caused by the needle electrode and free charge located in the neighboring cells. The coefficients for the controlled sources and cell capacitances are determined from the results of static field calculation. The effects of electron drift, impact ionization, and photoionization are involved into the conductance model. Physical parameters of the latter two processes are deduced from the experimental data available in the literature. The criteria for cell initiation are obtained for different applied voltages such that dynamic characteristics of the model correspond to the experimental ones. The experimental results for the nanosecond discharges are used here considering the streamer phase of discharge development. Further improvement of the conductance model is discussed with respect to plasma heating up to the temperatures enough for the streamer-to-leader transition. In addition to discharge patterns which were created to bemore » similar to experimental Lichtenberg figures, the model allows us to determine such local properties of the discharge as current, voltage drop, loss, field, and charge distribution.« less

Authors:
; ; ; ;  [1];  [2];  [2];  [2]
  1. Department of Electronic Engineering, The University of Electro-Communications, Tokyo, Japan 182-8585 (Japan)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
20982814
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 8; Other Information: DOI: 10.1063/1.2718288; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CAPACITANCE; CHARGE DISTRIBUTION; DIELECTRIC MATERIALS; ELECTRIC POTENTIAL; ELECTRODES; ELECTRON DRIFT; ELECTRON TEMPERATURE; ION TEMPERATURE; LICHTENBERG FIGURES; NONLINEAR PROBLEMS; PHOTOIONIZATION; PLASMA; PLASMA HEATING; PLASMA SIMULATION; VOLTAGE DROP

Citation Formats

Adalev, A. S., Hayakawa, M., Korovkin, N. V., Iudin, D. I., Trakhtengerts, V. Yu., Electromechanical Department, Saint-Petersburg State Polytechnical University, Saint-Petersburg, Russia 195251, Radiophysical Research Institute, Nizhny Novgorod, Russia 603950, and Institute of Applied Physics, Nizhny Novgorod, Russia 603000. Simulation of surface discharge dynamics by means of cellular automata. United States: N. p., 2007. Web. doi:10.1063/1.2718288.
Adalev, A. S., Hayakawa, M., Korovkin, N. V., Iudin, D. I., Trakhtengerts, V. Yu., Electromechanical Department, Saint-Petersburg State Polytechnical University, Saint-Petersburg, Russia 195251, Radiophysical Research Institute, Nizhny Novgorod, Russia 603950, & Institute of Applied Physics, Nizhny Novgorod, Russia 603000. Simulation of surface discharge dynamics by means of cellular automata. United States. doi:10.1063/1.2718288.
Adalev, A. S., Hayakawa, M., Korovkin, N. V., Iudin, D. I., Trakhtengerts, V. Yu., Electromechanical Department, Saint-Petersburg State Polytechnical University, Saint-Petersburg, Russia 195251, Radiophysical Research Institute, Nizhny Novgorod, Russia 603950, and Institute of Applied Physics, Nizhny Novgorod, Russia 603000. Sun . "Simulation of surface discharge dynamics by means of cellular automata". United States. doi:10.1063/1.2718288.
@article{osti_20982814,
title = {Simulation of surface discharge dynamics by means of cellular automata},
author = {Adalev, A. S. and Hayakawa, M. and Korovkin, N. V. and Iudin, D. I. and Trakhtengerts, V. Yu. and Electromechanical Department, Saint-Petersburg State Polytechnical University, Saint-Petersburg, Russia 195251 and Radiophysical Research Institute, Nizhny Novgorod, Russia 603950 and Institute of Applied Physics, Nizhny Novgorod, Russia 603000},
abstractNote = {A dynamic model of a creeping discharge over a dielectric surface is presented. A discharge area (above a dielectric sheet separating a metal needle from a ground plain electrode) is presented as a system of gas sphere cells covering the dielectric. A discharge tree (conducting cluster) is represented by a nonlinear circuit consisting of capacitances, nonlinear conductances, and controlled sources. The sources simulate the potential caused by the needle electrode and free charge located in the neighboring cells. The coefficients for the controlled sources and cell capacitances are determined from the results of static field calculation. The effects of electron drift, impact ionization, and photoionization are involved into the conductance model. Physical parameters of the latter two processes are deduced from the experimental data available in the literature. The criteria for cell initiation are obtained for different applied voltages such that dynamic characteristics of the model correspond to the experimental ones. The experimental results for the nanosecond discharges are used here considering the streamer phase of discharge development. Further improvement of the conductance model is discussed with respect to plasma heating up to the temperatures enough for the streamer-to-leader transition. In addition to discharge patterns which were created to be similar to experimental Lichtenberg figures, the model allows us to determine such local properties of the discharge as current, voltage drop, loss, field, and charge distribution.},
doi = {10.1063/1.2718288},
journal = {Journal of Applied Physics},
number = 8,
volume = 101,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}
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