| 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 Studies in a Low Density Gun Tunnel Stream |
|
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 |
OGUCHI, Hakuro
HONMA, Hiroki
FUNABIKI, Katsushi
|
| 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 30,
号 3,
p. 83-100,
発行日 1965-01
|
| 抄録（英） |
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|
内容記述タイプ |
Other |
|
内容記述 |
First the flow survey is made for the low-density hypersonic flow, which is achieved by a low-density operation of the gun tunnel (or free piston compression). In particular the measurements of flow velocity and, hence, of stagnation temperature are worked out by means of an explosion-wire technique and the flow survey done by traversing a free molecule calorimeter in the test flow region. With these diagnostics the characteristic feature of the test flow is investigated. It is found that, by a low-density operation of the present gun tunnel, the test flow of Mach number 10 and Reynolds number 650 (per cm) is achieved, which is applicable to experimental studies on low-density hypersonic flow problems. Secondly an experimental study is made concerning the shock-layer structure ahead of a sphere in a low-density hypersonic flow, achieved by the present gun tunnel. The scanning-electron-beam densitometer is developed to obtain a density distribution along a scanning path of the beam during one shot of the gun tunnel. By means of this device the density distribution across the shock layer is measured for a sphere of 12.4mm in radius, in which case the Reynolds Re_∞ is about 800. The present data exhibit a qualitative agreement with Lcvinsky-Yoshihara profile which was computed for argon flow of Mach number M=10 and Re_∞=10^3 and 10^2. |
| ISSN |
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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 |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00675986 |
| 資料番号 |
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|
内容記述タイプ |
Other |
|
内容記述 |
資料番号: SA2400496000 |
SA2400496.pdf (1.2 MB)
