NONEQUILIBRIUM SODIUM IONIZATION IN LAMINAR BOUNDARY LAYERS

Abstract

The injection of sodium as a trace contaminant into a laminar boundary layer was considered. Three ionizing reactions were studied and it was found that the ionization by collision with atomic oxygen was the most significant. The peak electron concentration was determined as a function of the scaling parameter, Px/U sub e. Comparisons were made with the predicted clean air variations with the same parameter. Stream tube predictions (neglecting diffusion) were also made and compared with the more exact results. The relative ionization of clean air and sodium was assessed as a function of altitude and amount of injection material. Bortner's rates were used for the nonequilibrium sodium ionization.

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Document Details

Document Type
Technical Report
Publication Date
Apr 14, 1964
Accession Number
AD0601326

Entities

People

  • John J. Kane

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Altitude
  • Boundary Layer
  • Diffusion
  • Electron Density
  • Electrons
  • Environmental Pollutants
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Heat Energy
  • Heat Shields
  • Materials
  • Mechanics
  • Molecular Weight
  • Payload
  • Prandtl Number

Fields of Study

  • Physics

Readers

  • Analytical Chemistry
  • Fluid Mechanics and Fluid Dynamics.
  • Plasma Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene