| Item type |
テクニカルレポート / Technical Report(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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|
タイトル |
大型低速風洞用ファイバ式三次元レーザ2焦点流速計設備PartIその性能評価:二次元計測を中心として |
| 言語 |
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|
言語 |
jpn |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
|
資源タイプ |
technical report |
| その他のタイトル(英) |
|
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その他のタイトル |
The Fibre Optic Three-Dimensional Laser-Two-Focus Velocimeter for the Low-Speed Windtunnel Part I Two- Dimensional Measurement Evaluations |
| 著者 |
高木, 正平
室田, 勝一
桑野, 尚明
萱場, 重男
TAKAGI, Shohei
MUROTA, Katsuichi
KUWANO, Naoaki
KAYABA, Shigeo
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| 著者所属 |
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航空宇宙技術研究所空力性能部 |
| 著者所属 |
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航空宇宙技術研究所空力性能部 |
| 著者所属 |
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航空宇宙技術研究所空力性能部 |
| 著者所属 |
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航空宇宙技術研究所空力性能部 |
| 出版者 |
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出版者 |
航空宇宙技術研究所 |
| 出版者(英) |
|
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出版者 |
National Aerospace Laboratory(NAL) |
| 書誌情報 |
航空宇宙技術研究所資料
en : Technical Memorandum of National Aerospace Laboratory
巻 627,
p. 31,
発行日 1990-09
|
| 抄録(英) |
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内容記述タイプ |
Other |
|
内容記述 |
A fibre optic three-dimensional Laser-Two-Focus(L2F)-Velocimeter was introduced in the Aircraft Aerodynamics Division in 1988. The former half of the present report describes both an outline and the principle of this system for two-dimensional measurements. In the latter half, the L2F-Velocimeter is evaluated by using three types of flows, i.e., two-dimensional wake, three-dimensional boundary layer and quasi two-dimensional free jet with, and occasionally without, seeding particles. Furthermore, several seeding particles such as paraffine vapor, mosquito-repellent smoke and tobacco smoke are used for evaluations. The axial velocity component from the L2F-Velocimeter is pointwisely compared with a calibrated velocity. The comparison is extended to the transverse mean velocity component/fluctuating components with hot-wire measurements, in which great care was taken with the linearity and wire inclination. There is no incongruity in comparison except in low turbulence with less than 2% intensity to the lal velocity .In summary, features of the fiber optic L2F-Velocimeter are its applicability to natural seed, wall-proximity and non-calibration measurements, although it is apriori known that the L2F-Velocimeter is not adaptable to both reverse flow and high turbulence measurements. |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0452-2982 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00314334 |
| 資料番号 |
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|
内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALTM0627000 |
| レポート番号 |
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|
内容記述タイプ |
Other |
|
内容記述 |
レポート番号: NAL TM-627 |