NDLI: A numerical model for the electrical breakdown of air within a gap under standard atmospheric conditions: One-dimensional versus two-dimensional approach

Content Provider	IEEE Xplore Digital Library
Author	Smith, D.J. McMeekin, S.G. Stewart, B.G. Wallace, P.A.
Copyright Year	2011
Description	Author affiliation: School of Engineering & Computing, Glasgow Caledonian University, Glasgow, Scotland, UK (Smith, D.J.; McMeekin, S.G.; Stewart, B.G.; Wallace, P.A.)
Abstract	A numerical model which simulates the electrical breakdown of air between parallel-plates at atmospheric pressure is presented in this paper. The modelling techniques and results are compared using a one-dimensional and two-dimensional axisymmetrical approach. Hydrodynamic drift-diffusion equations are coupled with the Poison equation and solved for the transportation of electrons, positive ions and negative ions in an electric field. A negative DC voltage is applied to the cathode at various gap separation distances and the voltage is increased until sparking occurs. Sparking voltage to separation distance characteristic curves are derived and compared to the Paschen curve. Calculations are made for the external discharge current for varying separation gaps. A characteristic curve of current versus voltage is evaluated against typical curves found in the literature. The discharge regime regions leading to a Townsend discharge are identified from the numerical simulations.
Starting Page	387
Ending Page	391
File Size	530990
Page Count	5
File Format	PDF
ISBN	9781457702785
e-ISBN	9781457702792
e-ISBN	9781457702778
DOI	10.1109/EIC.2011.5996184
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Discharges Numerical models Atmospheric modeling Mathematical model Physics Cathodes finite element method discharge voltage discharge current Paschen Townsend
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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