Numerical and experimental modeling of subnanosecond plasma closing switches in gases

J. H. Chen, C. J. Buchenauer, J. S. Tyo

Research output: Contribution to conferencePaperpeer-review

3 Scopus citations


In this paper, a 2-D Finite Element Time Domain (FETD) model is presented for analyzing sub nanosecond plasma closing switches in gases, based on the Matlab Partial Differential Equation (PDE) toolbox. We will present the basic features of the model, as well as the results of validation studies on simple problems such as switch closure in an ideal, infinite, conically symmetric test volume. The physical model is then modified to simulate a test cell that had been previously used to collect experimental data. The dynamic channel current and its rate of the switch were evaluated based on the numerical model for different gases in different pressure regimes. The dynamics of the switch closure are greatly affected by the gas species and pressure used for insulation in the experiment.

Original languageEnglish (US)
Number of pages4
StatePublished - 2003
Event14th IEEE International Pulsed Power Conference - Dallas, TX, United States
Duration: Jun 15 2003Jun 18 2003


Other14th IEEE International Pulsed Power Conference
Country/TerritoryUnited States
CityDallas, TX

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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