Fundamental Processes in Partially Ionized Plasmas.

Abstract

This research is directed to three major areas: recombination in molecular plasmas, discharge effects (plasma electrode interaction) and interaction of discharges and fluid dynamics. Recombination and ionization are fundamental processes that play a role in nearly all applications and natural phenomena that involve partially ionized plasmas. Under the present program, experiments have been designed and theoretical analyses conducted to obtain a better knowledge of the rates of electron recombination in the presence of molecular species. Studies are continuing of the near-electrode region and the processes by which current is transferred between the plasmas and the electrodes. The first stage of theoretical modeling of these processes has now been completed and published. A study of the interaction of discharges and fluid dynamics has measured the significant secondary flows caused by the interaction of a magnetic field with a current carrying plasma. Measurements have been made of secondary flows, and of their effects on profiles of axial velocity, turbulence intensity and electrical conductivity.

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1986
Accession Number
ADA170029

Entities

People

  • C. H. Kruger
  • M. Mitchner
  • S. A. Self

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Charged Particles
  • Chemical Reactions
  • Chemistry
  • Computational Fluid Dynamics
  • Electric Arcs
  • Electrical Conductivity
  • Electron Emission
  • Electrons
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Ionization
  • Measurement
  • Mechanical Engineering
  • Physics Laboratories
  • Propulsion Systems

Fields of Study

  • Physics

Readers

  • Plasma Physics.
  • Technical Research and Report Writing.

Technology Areas

  • Microelectronics