Relations for the thermodynamic and transport properties in the testing environment of the Langley hypersonic CF4 tunnel
- Sutton, K.
- Oct 1, 1981.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
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- Thermodynamic and transport properties of gaseous CF4 that can be used in flow field computer codes and theoretical analyses for comparison of results with experimental data from the Langley Hypersonic CF4 Tunnel are presented. The thermodynamic relations which are based on thermally perfect but calorifically imperfect gas are adequate for the testing environment of the CF4 tunnel and are simpler to use than the imperfect gas relations required to define the complete expansion from the tunnel reservoir. Relations for the transport properties are based on the kinetic theory of gases in which published experimental data are used in the derivation of the relations. Extensive experimental data were located for viscosity and the derived relation should provide values for viscosity with errors of less than 1 percent. The experimental data for thermal conductivity were limited with significant disagreement between the various sources. The derived relation will probably provide values for the thermal conductivity with errors of no more than 5 percent which is within the accuracy of the experimental data.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19820007486.
Accession ID: 82N15359.
- No Copyright.
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