| タイトル | Planar Fluorescence Imaging and Three-Dimensional Reconstructions of Capsule RCS Jets |
| 本文（外部サイト） | http://hdl.handle.net/2060/20090017987 |
| 著者（英） | Buck, Gregory M.; Mccrea, Andrew C.; Inman, Jennifer A.; Danehy, Paul M.; Alderfer, David W. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 2009-01-01 |
| 言語 | eng |
| 内容記述 | Planar laser-induced fluorescence (PLIF) flowfield visualization has been used to investigate reaction control system (RCS) jet flows in the wake of hypersonic capsule reentry vehicles. Pitch, roll, and yaw RCS jets were all studied. PLIF was used to obtain off-body flow images at planar slices in these flowfields, which are not easily visualized by other techniques owing to characteristically low gas density. When viewed individually, these slices are shown to provide spatially and temporally resolved information, including the locations and characteristics of turbulent flow structures and the location of the jet flow relative to the vehicle. In addition, ensembles of slices, acquired at multiple locations throughout the flowfield, are combined using computer visualization techniques to reconstruct the three-dimensional shape of the flow. Collectively, the off-body flow visualization data set acquired in these tests represents a valuable compliment to surface measurements, especially as a basis for explaining otherwise perplexing discrepancies between such measurements and computational fluid dynamics (CFD) results. The tests described herein were conducted in the 31-Inch Mach 10 Air Tunnel at NASA Langley Research Center. |
| NASA分類 | Fluid Mechanics and Thermodynamics |
| レポートNO | LF99-7760 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/253699 |
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