| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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タイトル |
Theoretical Consideration on Laminar-To-Turbulent Transitions over an Ablating Reentry Capsule |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| 著者 |
小紫, 公也
Candler, Graham V.
Komurasaki, Kimiya
Candler, Graham V.
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| 著者所属 |
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東京大学 工学部 航空宇宙工学科 |
| 著者所属 |
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Department of Aerospace Engineering and Mechanics, University of Minnesota |
| 著者所属（英） |
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en |
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Department of Aeronautics and Astronautics, University of Tokyo |
| 著者所属（英） |
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en |
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Department of Aerospace Engineering and Mechanics, University of Minnesota |
| 出版者 |
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出版者 |
宇宙科学研究所 |
| 出版者（英） |
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出版者 |
Institute of Space and Astronautical Science |
| 書誌情報 |
en : The Institute of Space and Astronautical Science report. S.P. : Aerodynamics, Thermophysics, Thermal Protection, Flight System Analysis and Design of Asteroid Sample Return Capsule
巻 17,
p. 109-122,
発行日 2003-03
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| 抄録（英） |
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内容記述タイプ |
Other |
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内容記述 |
The mechanism of early transition phenomena over an ablating reentry capsule has been examined. A two-equation turbulence model (kappa-epsilon model) coupled with Reynolds averaged Navier-Stokes equations has been employed. Low-Reynolds-number effects on the solid wall were considered by modifying the Chien's correction. As a result, the transition occurred at lower Reynolds numbers with higher ablation rates. The predicted transition-point Reynolds number was 3 x 10(exp 4) at the surface-mass-injection rate of 100 g/sm(sup 2). The principal mechanism of this early transition is thought as follows; the viscosity damping effects are reduced and re-laminarization is prevented in the downstream of the capsule surface, due to the turbulence on the surface and due to the pushing out of near-surface stream-lines from the surface by successive mass injection. |
| 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 |
0288-433X |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10455137 |
| 資料番号 |
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内容記述タイプ |
Other |
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内容記述 |
資料番号: SA0200018000 |
SA0200018.pdf (3.0 MB)
