Accession Number : AD0722402

Title :   A Critical Survey of Six Thermodynamic and Transport Properties of Air.

Descriptive Note : Rept. for 1967-1969,

Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES

Personal Author(s) : Gardiner,George Karl

Report Date : FEB 1971

Pagination or Media Count : 109

Abstract : A survey of six thermodynamic and transport properties of air was conducted for a range of pressures and temperatures corresponding to the conditions experienced by a vehicle flying at altitudes ranging from sea level to 300,000 feet, and velocities ranging from 0 to 15,000 ft/sec. The properties considered include enthalpy, compressibility, and specific heat at constant pressure, and viscosity, thermal conductivity and Prandtl number. Theoretical methods and experimental results are compared, and graphs and tables are presented that summarize the results from the various references. It was found that all methods for calculating thermal properties were in good agreement; however, discrepancies were found to exist between various methods of calculating transport properties. Recommendations are given as to which theory should be used to calculate each of the properties under consideration. (Author)

Descriptors :   (*ATMOSPHERES, TRANSPORT PROPERTIES), (*AIR, *THERMODYNAMICS), THERMAL CONDUCTIVITY, PRANDTL NUMBER, ENTHALPY, COMPRESSIVE PROPERTIES, VISCOSITY

Subject Categories : Atmospheric Physics
      Physical Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE