Ionospheric Aerodynamics Related to Space Vehicles, Space Shuttles and Satellites.

Abstract

The report summarizes the activities and results obtained during the tenure of the Grant. The relaxation problem of the Fokker-Planck collision operator is investigated. Comparison are made between the relaxation times of the Brownian Motion and the BGK collision operators. The AC electrical conductivity and the high-frequency electrical conductivity formulas for a fully ionized gas are derived. A new mechanism of an ionizing wave front is introduced. Its structure and propagation is studied. Criteria for instabilities are found. The effect of a samll amount of collisions on the stability of ion acoustic waves, drift waves, etc are considered. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 20, 1972
Accession Number
AD0737406

Entities

People

  • R. S. B. Ong

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Acoustic Waves
  • Artificial Satellites
  • Brownian Motion
  • Collisions
  • Conductivity
  • Electrical Conductivity
  • Frequency
  • Ionized Gases
  • Relaxation Time
  • Space Shuttles
  • Spacecraft
  • Vehicles
  • Waves

Fields of Study

  • Physics

Readers

  • Aerospace Engineering.
  • Plasma Physics / Magnetohydrodynamics
  • Technical Research and Report Writing.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster