Analytic Modeling and Experimental Validation of Intumescent Behavior of Charring Heatshield Materials

Abstract

Intumescing heatshield materials have been shown to provide significant thermal protection for missile system environments. The design and use of these materials requires the analytic understanding of a considerable level of thermodynamic phenomena occurring on the surface, as well as in-depth. These phenomena can include in-depth thermochemical decomposition, pyrolysis gas generation and mass transfer, thermophysical property change, thermochemical and mechanical ablation, intumescence or conduction path growth, and boundary layer modification due to pyrolysis gas injection or surface reactions. Existing numerical design codes do not specifically address the thermodynamic effects of intumescent behavior.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2004
Accession Number
ADA420017

Entities

People

  • Gerald W. Russell

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ablation
  • Ablative Materials
  • Aerodynamic Heating
  • Boundary Layer
  • Chemical Reactions
  • Combustion
  • Energy Transfer
  • Exothermic Reactions
  • Heat Energy
  • Heat Transfer
  • Mass Transfer
  • Measurement
  • Pyrolysis
  • Test And Evaluation
  • Test Facilities
  • Thermal Conductivity
  • Thermodynamics

Readers

  • Combustion science or combustion engineering.
  • Computational Fluid Dynamics (CFD)
  • Fire Suppression Systems Design.