Abstract

The paper presents a survey of the research into thermophysical properties of high temperature gases, conducted by the Institute of Thermomechanics of the Czechoslovak Academy of Sciences.

Thermodynamic properties of several gases and gas mixtures were computed within a temperature range of 1,000 to 5,000 (6,000)^oK for pressures ranging from 0.01 to (30) 100 b. Transport properties, especially thermal conductivity, were computed for some technical gases and gas mixtures between 300 - 5,000 (7,000)^oK. The calculations were based on the rigorous kinetic theory and Lennard-Jones potential. Theoretical approximations have been verified experimentally. The thermal conductivity has been measured in a shock tube by the reflected shock wave technique. For most of the gases tested a fairly good agreement between the theoretical and experimental values has been found. The shock tube and diagnostic techniques used as well as some additional gasdynamic measurements are described.