Chemical Equilibrium Code with Compressibility for Ablation and Erosion Calculations

Abstract

A version of the LeRC CET chemical equilibrium code, which includes B sub a value calculations for thermochemical erosion, was modified to include nonideal gas effects. The compressibility models that were added to the code were the BKW, Corner/Lennard-Jones Potential(LJP) and NBS models. Compressibility effects on species production for a variety of gun propellants were computed. These results were compared to the standard BLAKE code and were in agreement within the repeatability of the BLAKE code results. The effects of compressibility on values of the erosion rate blowing parameter, B sub a, and hot wall/gas enthalpy, h sub gw, were computed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2001
Accession Number
ADA396193

Entities

People

  • D. Coats
  • S. Dunn
  • S. Sopok

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • C4I
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ablation
  • Chemical Equilibrium
  • Chemical Reaction Properties
  • Coefficients
  • Combustion
  • Combustion Products
  • Compressive Properties
  • Diffusion Coefficient
  • Engineering
  • Enthalpy
  • Equations
  • Equations Of State
  • Gun Propellants
  • Heat Transfer
  • Materials
  • Propellants
  • Transport Properties

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Computational Fluid Dynamics (CFD)
  • Rocket Propulsion.