Accession Number : AD0746663

Title :   Absolute Velocity Determination in a Hypersonic Low-Density Flow,

Corporate Author : AERODYNAMISCHE VERSUCHSANSTALT GOETTINGEN (WEST GERMANY)

Personal Author(s) : Buetefisch,K. A.

Report Date : 05 APR 1971

Pagination or Media Count : 3

Abstract : An accurate knowledge of the absolute velocity in a hypersonic low-density tunnel would provide a useful check on the usual methods of stagnation temperature determination above 1400K, which is based on a comparison of the actual mass flux and heater power with room temperature values. The described technique for velocity determination is based on time-of-flight measurements of nitrogen ions produced by a short pulsed high energy electron beam. (Author)

Descriptors :   (*HYPERSONIC FLOW, VELOCITY), HYPERSONIC WIND TUNNELS, STAGNATION POINT, TEMPERATURE, IONS, NITROGEN, FREQUENCY, PULSES, WEST GERMANY

Subject Categories : Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE