WEKO3
アイテム
Experimental Study on the Drag of Blunt Bodies of Revolution at Hypersonic Speeds
https://jaxa.repo.nii.ac.jp/records/34412
https://jaxa.repo.nii.ac.jp/records/3441218d1b562-d93d-48e3-9fb0-a5b8a16af31c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SA2400615.pdf (5.2 MB)
|
|
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||
| タイトル | ||||||||
| タイトル | Experimental Study on the Drag of Blunt Bodies of Revolution at Hypersonic Speeds | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | departmental bulletin paper | |||||||
| 著者 |
HINADA, Motoki
× HINADA, Motoki
|
|||||||
| 出版者 | ||||||||
| 出版者 | 東京大学宇宙航空研究所 | |||||||
| 出版者（英） | ||||||||
| 出版者 | Institute of Space and Aeronautical Science,University of Tokyo | |||||||
| 書誌情報 |
en : ISAS report/Institute of Space and Aeronautical Science,University of Tokyo 巻 33, 号 14, p. 359-408, 発行日 1968-12 |
|||||||
| 抄録（英） | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | In order to investigate the aerodynamic characteristics of various bodies at hypersonic speeds, a gun tunnel having a flow cross-section of 7 m diameter has been constructed in the Institute of Space and Aeronautical Science, University of Tokyo. Drag coefficients of blunt bodies and characteristics of shock wave ahead of them have been investigated in the range of Mach numbers from 8 to 12. Semi-conductor strain gauge balance was used for the drag force measurement within the flow duration of 80∿500 msec. About fifty models of blunt bodies including cones, spherical-nose bodies and concavenose bodies have been tested. Since the drag coefficient of a circular disc is well known at hypersonic speeds, this is taken as a reference body, and the drag coefficient relative to that of the disc has been obtained for each body. It is found that the drag coefficient of the cone with semi-apex angle between 45° and 70° is higher than that predicted by the Newtonian theory and also that the drag in this case is decreased by a proper blunting of the nose. This phenomenon is explained by a physical consideration concerning the flow characteristics over the cone surface. Shape and stand-off distance of the shock wave have been investigated by schlieren pictures. The stand-off distance for the sharp cone is found to be linear with its semi-apex angle, and agrees well with an approximate theory derived by the present author based on the constant stream-tube-area approximation of Hayes. | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0372-1418 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA00675986 | |||||||
| 資料番号 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 資料番号: SA2400615000 | |||||||
