Theoretical Modeling of Accelerating Arc Plasmas

Abstract

The researchers present a calculation in a simplified geometry for the current distribution in the rails, taking into account the motion of the armature and the time variation of the current. Closed form, asymptotic, results for the current density are obtained for arbitrary time dependent electrical conductivity of the rails, and v is the speed of the armature. Because of eddy current effects the rail current may reverse in portions of the rails when the total current decreases. The current is used as a source of Joule heating to find the temperature distribution in the rails. The heat diffusivity is negligible and give numerical results concerning melting.

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Document Details

Document Type
Technical Report
Publication Date
Apr 22, 1988
Accession Number
ADA195606

Entities

People

  • Manuel A. Huerta

Organizations

  • University of Miami

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Carbonate Esters
  • Classification
  • Coefficients
  • Conductivity
  • Coordinate Systems
  • Current Density
  • Equations
  • Geometry
  • Heat Transfer
  • Magnetic Fields
  • Magnetic Forces
  • Numbers
  • Radiation
  • Scientific Research
  • Two Dimensional

Readers

  • Fluid Dynamics.
  • Plasma Physics.
  • Thermal Physics or Thermal Science.