| 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 |
Experimental study of thermocapillary flow in the half-zone liquid bridge of low prandtl number fluid |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| キーワード |
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主題Scheme |
Other |
|
主題 |
熱毛細管流 |
| キーワード |
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主題Scheme |
Other |
|
主題 |
液体ブリッジ |
| キーワード |
|
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主題Scheme |
Other |
|
主題 |
振動流 |
| キーワード |
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主題Scheme |
Other |
|
主題 |
プラントル数 |
| キーワード |
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主題Scheme |
Other |
|
主題 |
温度測定 |
| キーワード |
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主題Scheme |
Other |
|
主題 |
音響特性 |
| キーワード |
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主題Scheme |
Other |
|
主題 |
流れの可視化 |
| キーワード |
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主題Scheme |
Other |
|
主題 |
表面張力 |
| キーワード |
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|
言語 |
en |
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主題Scheme |
Other |
|
主題 |
thermocapillary flow |
| キーワード |
|
|
言語 |
en |
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主題Scheme |
Other |
|
主題 |
liquid bridge |
| キーワード |
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|
言語 |
en |
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主題Scheme |
Other |
|
主題 |
oscillating flow |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Prandtl number |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
temperature measurement |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
acoustic property |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
flow visualization |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
surface tension |
| 資源タイプ |
|
|
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 |
|
|
その他のタイトル |
低プラントル数流体の半ゾーン液体ブリッジにおける熱毛細管流の実験的研究 |
| 著者 |
大高, 雅彦
高木, 克彦
夏井, 秀定
新井, 達也
依田, 真一
Otaka, Masahiko
Takagi, Katsuhiko
Natsui, Hidesada
Arai, Tatsuya
Yoda, Shinichi
|
| 著者所属 |
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|
宇宙開発事業団 |
| 著者所属 |
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宇宙開発事業団 |
| 著者所属 |
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エイ・イー・エス |
| 著者所属 |
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宇宙開発事業団 |
| 著者所属 |
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宇宙開発事業団 |
| 著者所属（英） |
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|
en |
|
|
National Space Development Agency of Japan |
| 著者所属（英） |
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|
en |
|
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National Space Development Agency of Japan |
| 著者所属（英） |
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|
en |
|
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Advanced Engineering Services Co. Ltd. |
| 著者所属（英） |
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|
en |
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National Space Development Agency of Japan |
| 著者所属（英） |
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en |
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National Space Development Agency of Japan |
| 出版者 |
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出版者 |
宇宙開発事業団 |
| 出版者（英） |
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出版者 |
National Space Development Agency of Japan (NASDA) |
| 書誌情報 |
宇宙開発事業団技術報告: Marangoni Convection Modeling Research: Annual Report April 1, 2000 - March 31, 2001
en : NASDA Technical Memorandum: Marangoni Convection Modeling Research: Annual Report April 1, 2000 - March 31, 2001
p. 145-180,
発行日 2001-12-25
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| 抄録（英） |
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内容記述タイプ |
Other |
|
内容記述 |
The first and clear experimental evidence for the transition from the steady to the oscillatory flow was presented by the non-contact temperature measurement of a molten tin surface and the surface flow visualization. Imaishi et al. confirmed validity of the experimentally determined Ma(sub c2) and frequency of the standing wave in comparison with a numerical result. Some performance tests for radiation thermometer also made this experimental result reliable and accurate. The effect of an aspect ratio (As) on the Ma(sub c2) has been studied. The Ma(sub c2) increases with decreasing of As in the range of As near 1.24. Internal temperature field of liquid bridge at oscillatory flow was speculated by the phase relation analysis of the simultaneous multi-measurement data of surface temperature. The numerical simulation was conducted under the same conditions of the experiment in order to check the onset point and temperature fluctuation data obtained by the experiment. The surface tension of molten tin was measured at various temperatures between 523 and 1023 K under the oxygen partial pressures (P(sub O2)) between 10(exp -19) and 10(exp -6) MPa. It was clarified an appropriate value of the surface tension coefficient for experimental chamber is - 0.9 x 10(exp -4) N/mK. It was also found that the temperature coefficient of surface tension at a constant P(sub O2) raised as P(sub 02) increased, and the sign of the coefficient changed from minus to plus at logP(sub 02) = -9.375 MPa. Visualization technique (3D-UV) of flow field measurements for liquid metals using ultrasonic transducer with high heat resistance has been successively developed for the experiments. Sensitivity of transducer was examined at high temperature condition same as actual thermocapillary experiment. High spatial resolution in the direction of ultrasonic propagation was obtained. Visualization performance of ongoing sensor design was confirmed by numerical simulation. The tracer is also currently under development. Technique for improvement of sphericity and surface roughness was developed. Endurance against molten tin and acoustic characteristics of trial production were experimentally examined. |
| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1345-7888 |
| 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 |
AN00364784 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: AA0032601006 |
| 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: NASDA-TMR-010015E |
32601006.pdf (3.7 MB)
