Hypersonic Wind Tunnel Nozzle Survivability for T&E

Abstract

The nozzle in a hypersonic wind tunnel is generally subjected to a severe thermal environment. Several methods can be used to manage the energy absorbed by the nozzle, including backside cooling, film/transpiration cooling, and storing the energy in a heatsink fashion. The development of new alloys that retain strength at higher temperatures has increased the feasibility of the selflimiting heat-sink mode of operation. This paper discusses the development of a series of such alloys as well as the applications for which they have been designed. The most promising of these is an Ir-Zr alloy. A nozzle has been fabricated from this alloy. Nozzle survivability tests with this alloy are planned.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2007
Accession Number
ADA463872

Entities

People

  • C. T. Liu
  • D. T. Akers
  • E. J. Felderman
  • J. Schneibel

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Heat Transfer
  • Hypersonic Wind Tunnels
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanical Working
  • Modulus Of Elasticity
  • Solid Solutions
  • Stress Strain Relations
  • Tensile Strength
  • Test And Evaluation
  • Test Facilities
  • Thermal Conductivity
  • Wind Tunnels
  • Yield Strength

Readers

  • Combustion and Flow Dynamics.
  • Materials Science (Mechanical Engineering).
  • Thermal Physics or Thermal Science.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow