Characterization of arcjet flows using laser-induced fluorescence
Autor: | Anthony W. Strawa, Douglas J. Bamford, David A. Stewart, Dikran S. Babikian, Anthony O'Keefe |
---|---|
Rok vydání: | 1995 |
Předmět: |
Fluid Flow and Transfer Processes
Quenching (fluorescence) Materials science Mechanical Engineering Aerodynamic heating Aerospace Engineering Thermodynamics Condensed Matter Physics Stagnation point Temperature measurement Arcjet rocket Flow velocity Space and Planetary Science Ionization Atomic physics Laser-induced fluorescence |
Zdroj: | Journal of Thermophysics and Heat Transfer. 9:26-33 |
ISSN: | 1533-6808 0887-8722 |
DOI: | 10.2514/3.624 |
Popis: | A sensor based on laser-induced fluorescence has been installed at the 20-MW NASA Ames Aerodynamic Heating Facility. The sensor has provided new, quantitative, real-time information about properties of the arcjet flow in the highly dissociated, partially ionized, nonequilibrium regime. Number densities of atomic oxygen, flow velocities, heavy particle translational temperatures, and collisional quenching rates have been measured. These results have been used to test and refine computational models of the arcjet flow. The calculated number densities, translational temperatures, and flow velocities are in moderately good agreement with experiment |
Databáze: | OpenAIRE |
Externí odkaz: |
načítá se...