| タイトル | Density measurements in an expanding flow using holographic interferometry |
| 著者（英） | Meyer, Scott A.; Ruffin, Stephen M.; Yates, Leslie A.; Sharma, Surendra P.; Gillespie, Walter D. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1992-01-01 |
| 言語 | eng |
| 内容記述 | A nonequilibrium expansion of nitrogen through a 2-dimensional nozzle of a reflected shock tunnel is investigated with laser holography, time resolved pressure measurements and emission spectroscopy to characterize the flow field for vibrational relaxation measurements. A 2D computation is used to simulate the nozzle flow field. Synthetic holograms are generated using the computed density profiles and are compared with the experimental holograms. Also, using a quasi 1-D approximation, populations for each vibrational level are computed by (1) solving the master equations and (2) using the Landau-Teller formulation. Computational accuracy of both models is assessed against the experimental data. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 92A29584
AIAA PAPER 92-0809 |
| 権利 | Copyright |
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