Population profile of the first excited state in an ionizing argon shock wave
Abstract
Numerical calculations are carried out to help interpret relaxation phenomena behind a strong normal shock wave in argon gas. A realistic 'multiquantum-jump model' with four adjustable parameters is used for electronic transitions induced by atom-atom and electron-atom collisions. In this model, transitions populate every state and from each of these states excitation, deexcitation, and ionization compete. Numerical results are presented particularly for the population profile of the first excited state for different values of the parameters. Comparison between the profile and experiment uniquely determines three of the parameters with the aid of the experimental relaxation time of ionization.
- Publication:
-
23rd Japan National Congress for Applied Mechanics
- Pub Date:
- 1975
- Bibcode:
- 1975apme.proc..203T
- Keywords:
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- Argon;
- Molecular Excitation;
- Molecular Relaxation;
- Normal Shock Waves;
- Atomic Collisions;
- Electron Transitions;
- Gas Ionization;
- Quantum Theory;
- Relaxation Time;
- Shock Wave Propagation;
- Fluid Mechanics and Heat Transfer