Shock‐Tube Study of Vibrational Relaxation in Carbon Dioxide

1968 ◽  
Vol 49 (2) ◽  
pp. 513-522 ◽  
Author(s):  
C. J. S. M. Simpson ◽  
K. B. Bridgman ◽  
T. R. D. Chandler
Keyword(s):  
Carbon Dioxide ◽  
Shock Tube ◽  
Vibrational Relaxation ◽  
Tube Study

Establishment of the Bow-Wave in the Supersonic Flow of Carbon Dioxide Past a Sphere

1968 ◽  
Vol 19 (1) ◽  
pp. 51-58 ◽  
Author(s):  
H. K. Zienkiewicz ◽  
I. D. Malloch
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Supersonic Flow ◽  
Shock Tube ◽  
Vibrational Relaxation ◽  
Incident Shock ◽  
Slight Effect ◽  
Schlieren Technique ◽  
Bow Wave ◽  
Made In

SummaryAn experimental study of bow-wave trajectories for a sphere in CO2 has been made in a shock tube, using a drum-camera-schlieren technique, for incident shock Mach numbers of 2·4, 2·8 and 4·0. Results show that vibrational relaxation has only a slight effect on the bow-wave formation time but significantly affects the stand-off distance in steady flow.

scholarly journals Shock‐Tube Study of Carbon Dioxide Dissociation Rate

1963 ◽  
Vol 38 (8) ◽  
pp. 1939-1944 ◽  
Author(s):  
Theodore A. Brabbs ◽  
Frank E. Belles ◽  
Steven A. Zlatarich
Keyword(s):  
Carbon Dioxide ◽  
Shock Tube ◽  
Dissociation Rate ◽  
Tube Study

Measurement of the relaxation frequency of the asymmetric stretching mode of carbon dioxide

1969 ◽  
Vol 35 (1) ◽  
pp. 171-183 ◽  
Author(s):  
J. P. Hodgson ◽  
R. J. Hine
Keyword(s):  
Carbon Dioxide ◽  
Shock Waves ◽  
Shock Tube ◽  
Vibrational Relaxation ◽  
Thermal Emission ◽  
Relaxation Frequency ◽  
Rate Of Change ◽  
Density Measurements ◽  
Bending Mode ◽  
Made In

The vibrational relaxation frequency of carbon dioxide has been determined by measuring the rate of change of thermal emission in shock waves near 4±3μ. This method of measuring the relaxation frequency depends mainly on the degree of excitation of the asymmetric stretching mode of the molecule, and the results are compared with those of earlier density measurements made in the same shock tube. The gas samples used are not optically thin, and it is shown that self-absorption can be taken into account. The results imply that the relaxation frequency of the asymmetric stretching mode is about 70% of that of the bending mode.

Shock‐Tube Study of Vibrational Relaxation in Nitrous Oxide

1968 ◽  
Vol 49 (2) ◽  
pp. 509-513 ◽  
Author(s):  
C. J. S. M. Simpson ◽  
K. B. Bridgman ◽  
T. R. D. Chandler
Keyword(s):  
Nitrous Oxide ◽  
Shock Tube ◽  
Vibrational Relaxation ◽  
Tube Study

Shock tube study of DF vibrational relaxation

1973 ◽  
Vol 58 (3) ◽  
pp. 934-940 ◽  
Author(s):  
J. F. Bott ◽  
N. Cohen
Keyword(s):  
Shock Tube ◽  
Vibrational Relaxation ◽  
Tube Study
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