INSULATIVE PERFORMANCE OF SELECTED ABLATIVE MATERIALS IN A LOW ENTHALPY HYPERSONIC AIRSTREAM

Abstract

Tests were conducted to investigate the insulative performance of selected ablative materials when exposed to a relatively low enthalpy hypersonic airstream. Samples of cork, an elastomeric shield material, phenolic glass containing a buton resin, and phenolic glass, mounted on the surface of a sharp flat plate, were injected into a Mach 10 airstream at 15- and 25-deg angles of attack. The model was tested at a high free-stream Reynolds number, 2,200,000 per foot, to produce turbulent flow over the samples. The test results, which consisted of back surface temperature histories on the 0.15-in. -thick samples, showed that cork provided the greatest heat protection.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1966
Accession Number
AD0632514

Entities

People

  • J. B. Carman Jr.

Organizations

  • Arnold Engineering Development Complex

Tags

DTIC Thesaurus Topics

  • Ablative Materials
  • Air Force
  • Boundary Layer
  • Contracts
  • Data Reduction
  • Enthalpy
  • Flow
  • Fluid Dynamics
  • Free Stream
  • Heat Transfer
  • Instrumentation
  • Leading Edges
  • Materials
  • Pressure Measurement
  • Reynolds Number
  • Turbulent Flow
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Polymer Science and Engineering.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow
  • Microelectronics