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Input guide for computer programs to generate thermodynamic data for air and Freon CF4FORTRAN computer programs were developed to calculate the thermodynamic properties of Freon 14 and air for isentropic expansion from given plenum conditions. Thermodynamic properties for air are calculated with equations derived from the Beattie-Bridgeman nonstandard equation of state and, for Freon 14, with equations derived from the Redlich-Quang nonstandard equation of state. These two gases are used in scale model testing of model rocket nozzle flow fields which requires simulation of the prototype plume shape with a cold flow test approach. Utility of the computer programs for use in analytical prediction of flow fields is enhanced by arranging card or tape output of the data in a format compatible with a method-of-characteristics computer program.
Document ID
19750024868
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Tevepaugh, J. A.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Penny, M. M.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Baker, L. R., Jr.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1975
Subject Category
Thermodynamics And Statistical Physics
Report/Patent Number
NASA-CR-144431
LMSC-HREC-TM-D390169
Report Number: NASA-CR-144431
Report Number: LMSC-HREC-TM-D390169
Accession Number
75N32941
Funding Number(s)
CONTRACT_GRANT: NAS9-13429
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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