Chemical Equilibrium Code with Compressibility for Ablation and Erosion Calculations

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. Compressib...

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Bibliographic Details
Main Authors: Dunn, S, Coats, D, Sopok, S
Format: Report
Language:English
Subjects:
ABLATION
BLAKE COMPUTER PROGRAM
CCET COMPUTER PROGRAM
CCET(CHEMICAL EQUILIBRIUM TRANSPORT PROPERTIES)
CHEMICAL EQUILIBRIUM
CHEMICAL REACTIONS
COMBUSTION
COMPRESSIVE PROPERTIES
COMPUTATIONS
Computer Programming and Software
COMPUTER PROGRAMS
ENTHALPY
EQUATIONS OF STATE
EROSION
GASES
GUN PROPELLANTS
GUN TUBES
HIGH TEMPERATURE
LERC CET COMPUTER PROGRAM
M30A1 PROPELLANT
M919 PROPELLANT
PE62262A
Physical Chemistry
SOLID WALLS
THERMOCHEMISTRY
TIGER COMPUTER PROGRAM
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Summary: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. Presented at the JANNAF Combustion Meeting (33rd), Monterey, CA, October 1996. Prepared in collaboration with Software and Engineering Associates, Inc., Carson City, NV.