| タイトル | Development and utilization of a laser velocimeter system for a large transonic wind tunnel |
| 本文（外部サイト） | http://hdl.handle.net/2060/19820023787 |
| 著者（英） | Greissing, J. P.; Freedman, R. J. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1982-06-01 |
| 言語 | eng |
| 内容記述 | The need for measurements of the velocity flow field about spinner propeller nacelle configurations at Mach numbers to 0.8 was met by a specially developed laser velocimeter system. This system, which uses an argon ion laser and 4 beam 2 color optics, was required to operate in the hostile environment associated with the operation of a large transonic wind tunnel. To overcome the conditions present in locating the sensitive optics in close proximity to the wind tunnel, an isolation system was developed. The system protects the velocimeter from the high vibrations, elevated temperatures, destructive acoustic pressures and low atmospheric pressures attendant with the operation of the wind tunnel. The system was utilized to map the flow field in front of, behind and in between the rotating blades of an advanced swept blade propeller model at a Mach number of 0.8. The data collected by the system will be used to correlate and verify computer analyses of propeller nacelle flow fields and propeller performance. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 82N31663
NAS 1.15:82886
E-1264
NASA-TM-82886 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/165021 |
