| 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 |
半円柱の臨界レイノルズ数前後における風圧分布風洞実験および関連特性 |
| 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 |
Wind-tunnel Investigation of the Pressure Distribution and Deduced Characteristics of Semi-Circular Cylinder in the Vicinity of Critical Reynolds Number |
| 著者 |
滝澤, 直人
岡田, 典秋
岩崎, 昭人
TAKIZAWA, Naoto
OKADA, Noriaki
IWASAKI, Akihito
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| 著者所属 |
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航空宇宙技術研究所新型航空機研究グループ |
| 著者所属 |
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航空宇宙技術研究所新型航空機研究グループ |
| 著者所属 |
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航空宇宙技術研究所新型航空機研究グループ |
| 著者所属（英） |
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en |
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V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
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en |
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V/STOL Aircraft Research Group, 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-871
巻 871,
p. 18,
発行日 1985-08
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| 抄録（英） |
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内容記述タイプ |
Other |
|
内容記述 |
Two-dimensional semi-circular cylinders have been tested over a Reynolds number range from 67,000 to 600,000 and over angles of attack of ±90deg, to measure pressure distributions and to deduce forces, stagnation, separation and other characteristics. Tests were conducted in the NAL instrument wind-tunnel, the NAL gust wind-tunnel and the Fuji Heavy Industries fume wind-tunnel. The wind-tunnel-boundary correction was specialized by the concept of effective model-height and wake-width. Below an angle of attack of 40deg, pressure distributions about the upper- and lower-surface were similar to the circular cylinder and the flat plate respectively and showed considerable difference between sub- and super-critical Reynolds number. The lift and drag coefficient range were -0.85 ～ 1.5, 0.4 ～ 2.28 at sub-critical and 0 ～ 2.02, 0.1 ～ 2.37 at super-critical. Features were as follows : Near -60deg, suction peak and lift coefficients were extraordinarily high at super-critical. Near 0deg, force coefficient curves, except the chord force, were concave. Near 25deg, lift coefficient showed a maximum value of 2.02 at super-critical Reynolds number. At 40deg ～ 50deg, upper suction double peak and negative chord force (but 5deg ～ 50deg at super-critical) were shown. At 60deg ～ 90deg, pressure distributions over the upper surface showed a low hat shape. |
| 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 |
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: NALTR0871000 |
| レポート番号 |
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内容記述タイプ |
Other |
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内容記述 |
レポート番号: NAL TR-871 |
naltr00871.pdf (3.7 MB)
