A NOTE ON THE STAGNATION-POINT LANGMUIR PROBE

Abstract

The stagnation-point Langmuir probe theory is presented, valid for supersonic flow with completely frozen but low degree of ionization. It is shown that under certain cold-wall conditions, diffusion and compression within a region of the stagnation point the boundary layer act to exactly balance one another, with the result that the ion density remains constant throughout this region, and thus the probe characteristic curve exhibits a nearly constant ion saturation limit. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1961
Accession Number
AD0271646

Entities

People

  • L. Talbot

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Compression
  • Diffusion
  • Flow
  • Ion Density
  • Ionization
  • Ions
  • Langmuir Probes
  • Layers
  • Probes
  • Saturation
  • Stagnation Point
  • Supersonic Flow

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Materials Science.
  • Thin Film Deposition Science.

Technology Areas

  • Hypersonics