Accession Number : AD0719750

Title :   Shock Layer Ionization at High Altitudes.

Descriptive Note : Final rept. Nov 68-Jan 71,

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA RE-ENTRY AND ENVIRONMENTAL SYSTEMS DIV

Personal Author(s) : Lew,Henry G.

Report Date : NOV 1970

Pagination or Media Count : 121

Abstract : Electron production from the high temperature shock layer of blunt re-entry bodies are considered at high altitudes. The dissociation and subsequent ionization of air species due to the high flight speeds are predicted by analytical techniques with the consideration of the prevalent viscous effects at low density throughout the flow and with chemical relaxation of these species. The effect of vibrational nonequilibrium is also determined. Finally the spatial distributions of air species, temperature, velocity, and electron concentrations over a sphere-cone body, the Trailblazer, is mapped in detail for several altitude velocity conditions. (Author)

Descriptors :   (*ATMOSPHERE ENTRY, *IONIZATION), (*REENTRY VEHICLES, HYPERSONIC CHARACTERISTICS), AERODYNAMIC HEATING, SHOCK WAVES, VELOCITY, ELECTRON DENSITY, NUMERICAL METHODS AND PROCEDURES, EQUATIONS OF MOTION, LAMINAR BOUNDARY LAYER

Subject Categories : Fluid Mechanics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE