Ionization coefficient approach to modeling breakdown in nonuniform geometries.

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This report summarizes the work on breakdown modeling in nonuniform geometries by the ionization coefficient approach. Included are: (1) fits to primary and secondary ionization coefficients used in the modeling; (2) analytical test cases for sphere-to-sphere, wire-to-wire, corner, coaxial, and rod-to-plane geometries; a compilation of experimental data with source references; comparisons between code results, test case results, and experimental data. A simple criterion is proposed to differentiate between corona and spark. The effect of a dielectric surface on avalanche growth is examined by means of Monte Carlo simulations. The presence of a clean dry surface does not appear to enhance ... continued below

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95 p.

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Warne, Larry Kevin; Jorgenson, Roy Eberhardt & Nicolaysen, Scott D. November 1, 2003.

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Description

This report summarizes the work on breakdown modeling in nonuniform geometries by the ionization coefficient approach. Included are: (1) fits to primary and secondary ionization coefficients used in the modeling; (2) analytical test cases for sphere-to-sphere, wire-to-wire, corner, coaxial, and rod-to-plane geometries; a compilation of experimental data with source references; comparisons between code results, test case results, and experimental data. A simple criterion is proposed to differentiate between corona and spark. The effect of a dielectric surface on avalanche growth is examined by means of Monte Carlo simulations. The presence of a clean dry surface does not appear to enhance growth.

Physical Description

95 p.

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  • Report No.: SAND2003-4078
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/918222 | External Link
  • Office of Scientific & Technical Information Report Number: 918222
  • Archival Resource Key: ark:/67531/metadc881213

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1, 2003

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

Description Last Updated

  • Nov. 29, 2016, 4:31 p.m.

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Warne, Larry Kevin; Jorgenson, Roy Eberhardt & Nicolaysen, Scott D. Ionization coefficient approach to modeling breakdown in nonuniform geometries., report, November 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc881213/: accessed April 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.