An Instrument for the Simultaneous Measurement of Velocity, Temperature and Density in Unseeded Air Flows.

Abstract

The development and the design of advanced hypersonic vehicles such as the National Aerospace Plane (NASP) or the Space Shuttle will strongly depend on computer simulation mainly because some of the flight conditions experienced by these vehicles will be difficult or prohibitively expensive to create in ground facilities. Computer simulation will be used to reduce the need for expensive test time or will replace those experimental tests which can not be performed. However, computer simulations require validation before their results can be accepted. These validation tests, which must be performed in hypersonic and turbulent air flows, require the simultaneous measurement of air temperature, density and velocity at a high temporal and spatial resolution which will allow to resolve turbulence structures. (JES)

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Document Details

Document Type
Technical Report
Publication Date
Jan 31, 1989
Accession Number
ADA205588

Entities

People

  • Gabriel Laufer

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Flow
  • Detection
  • Distribution Functions
  • Doppler Effect
  • Dye Lasers
  • Frequency
  • Gas Flow
  • Gaussian Distributions
  • Ground State
  • Ionization
  • Laser Beams
  • Laser Induced Fluorescence
  • Lasers
  • Liquid Dye Lasers
  • Measurement
  • Spectra
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow
  • Space
  • Space - Hall-Effect Thruster