| 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 |
風胴膜型の精度と試験結果について |
| 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 |
Effect of Imperfect Wind-Tunnel Model Configuration on Aerodynamic Performance |
| 著者 |
鈴木, 弘一
竹内, 理
SUZUKI, Koichi
TAKEUCHI, Osamu
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| 著者所属 |
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航空宇宙技術研究所空気力学第二部 |
| 著者所属 |
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航空宇宙技術研究所空気力学第二部 |
| 著者所属（英） |
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|
en |
|
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Second Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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Second Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 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報告
en : Technical Report of National Aerospace Laboratory TR-518
巻 518,
p. 21,
発行日 1977-12
|
| 抄録（英） |
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内容記述タイプ |
Other |
|
内容記述 |
Geometrical imperfection in a Wind-Tunnel model sometimes leads to erroneous test results. This report describes experimental results in a transonic flow of 2-dimensional pressure distribution over three wing models of the same configuration with slight profile errors. The tests were performed at Mach numbers of 0.5～0.85 and attack angles of 0 deg～4 deg. It was found that in the subcritical regime, pressure distribution was not markedly influenced by the small error in profile shape. However, at a design Mach number of about 0.75 a strong affect was noted and accuracy became crucial especially near the leading edge. The effects of pressure distribution changes due to model shape errors were observed on several aerodynamic parameters such as lift-curve slope, drag coefficient, and drag-divergence Mach number. Changes in these parameters due to model shape error were also shown. Actual model configurations were accurately measured, and the data used in numerical estimation of pressure distribution for prescribed shapes. The result clearly indicated the trend of the experimental results. |
| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0389-4010 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALTR0518000 |
| 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 TR-518 |
naltr00518.pdf (1.8 MB)
