Entrainment in High-Velocity, High Temperature Plasma Jets Part I: Experimental Results
Journal Article
·
· International Journal of Heat and Mass Transfer
OSTI ID:804074
- Idaho National Engineering and Environmental Laboratory
The development of a high-velocity, high-temperature argon plasma jet issuing into air has been investigated. In particular the entrainment of the surrounding air, its effect on the temperature and velocity profiles and the subsequent mixing and dissociation of oxygen has been examined in detail. The total concentration of oxygen and the velocity and temperature profiles in the jet were obtained from an enthalpy probe. High-resolution Thomson scattering provided an independent measure of plasma velocity and temperature, validating enthalpy probe measurements and providing non-intrusive measurements near the nozzle exit. The concentration of atomic oxygen was obtained from two-photon Laser Induced Fluorescence (LIF). Molecular oxygen concentration and temperature was obtained from Coherent Anti-Stokes Raman Spectroscopy (CARS). It was found that both the incompleteness of mixing at the molecular scale and the rate of oxygen dissociation and recombination effects jet behavior.
- Research Organization:
- Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC07-99ID13727
- OSTI ID:
- 804074
- Report Number(s):
- INEEL/JOU-02-00448
- Journal Information:
- International Journal of Heat and Mass Transfer, Journal Name: International Journal of Heat and Mass Transfer; ISSN 0017-9310; ISSN IJHMAK
- Country of Publication:
- United States
- Language:
- English
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