INTERFEROMETRIC MEASUREMENT OF THE NONEQUILIBRIUM FLOW FIELD AROUND A CONE

Abstract

Interferometric measurement of the density field around a cone in a stream of oxygen at approximately 10,000 ft/sec is reported. The test flow was generated in an expansion tube, which utilized an unsteady expansion for the purpose of total enthalpy multiplication. The experiment shows that vibrational equilibrium is achieved close behind the shock, while chemical relaxation occurs throughout the shock layer. The experimental density distribution and shock shape are compared with theoretical predictions, and good agreement is found.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1966
Accession Number
AD0645700

Entities

People

  • Joan M. Bartos
  • Joseph H. Spurk

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Boundaries
  • Boundary Layer
  • Chemical Reactions
  • Coordinate Systems
  • Flow
  • Flow Fields
  • Free Stream
  • Interferograms
  • Interferometers
  • Interferometry
  • Layers
  • Mach Number
  • Measurement
  • Nonequilibrium Flow
  • Refractive Index

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Materials Science and Engineering.