Aerotherm Equilibrium Surface Thermochemistry Computer Program, Version 3. Volume 1. Program Description and Sample Problems

Abstract

A Fortran IV computer code is described which computes the equilibrium or mixed frozen/equilibrium thermodynamic state of general chemical systems. Closed (fixed mass) molecular compositions are evaluated from relative elemental quantities, species thermochemical data and two state properties (pressure and temperature or enthalpy). Open system (diffusive mass flux dependent) states are defined from surface equilibrium considerations utilizing a film coefficient model which accounts for the unequal diffusion of species. The generality of the formulation allows computations for a broad range of environments and surface materials including charring ablators. This computer code is designated Version 3 of the Aerotherm Equilibrium Surface Thermochemistry code (EST3) and provides surface mass balance quantities needed for ablation predictions by the Aerotherm Charring Material Ablation code (CMA).

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1970
Accession Number
AD0875385

Entities

People

  • Mitchell R. Wool

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ablative Materials
  • Aging (Materials)
  • Air Force
  • Boundary Layer
  • Chemical Elements
  • Chemical Equilibrium
  • Chemical Reactions
  • Chemistry
  • Computer Programs
  • Diffusion Coefficient
  • Heat Transfer
  • Material Degradation Processes
  • Materials Science
  • Partial Pressure
  • Solid Propellants
  • Specific Heat
  • Thermodynamic Properties

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Computer Science.
  • Thermal Physics or Thermal Science.