RESPONSE OF CHARRING ABLATORS TO HYPERTHERMAL ENVIRONMENT

Abstract

A study is made of the thermal response of charring ablators to given environmental conditions. The heat protective materials considered form gases and a porous char as they undergo thermal degradation in depth. The analysis considers the transient conditions and the effect of porosity pressure on the gas pressure build-up within the porous char. The effects of porosity and permeability are included. Results of the temperature, material density, and gas pressure distribution through the heat protective layer are presented for a typical charring material. Two cases are considered: in the first case, the material undergoes one degradation reaction; in the second case, the material under goes two successive reactions. The inclusion of char removal can also be accomplished by this study.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1963
Accession Number
AD0404742

Entities

People

  • R. D. Mathieu

Organizations

  • General Electric

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ablative Materials
  • Air Force
  • Chemical Kinetics
  • Conductivity
  • Energy
  • Equations
  • Heat Flux
  • Heat Transfer
  • Materials
  • Mechanical Properties
  • Molecular Weight
  • Porous Materials
  • Pressure Distribution
  • Space Sciences
  • Surface Temperature
  • Thermal Conductivity
  • Thermodynamic Properties

Readers

  • Surface Engineering/Surface Coating Technology.
  • Thermal Physics or Thermal Science.