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Numerical simulation of three dimensional oscillatory flow in half-zone bridges of low P[lc]r fluids
https://jaxa.repo.nii.ac.jp/records/42851
https://jaxa.repo.nii.ac.jp/records/42851eabc4b6d-8717-4eab-a3cc-c6cdfa867b90
名前 / ファイル | ライセンス | アクション |
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45403005.pdf (3.0 MB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Numerical simulation of three dimensional oscillatory flow in half-zone bridges of low P[lc]r fluids | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Marangoni対流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ハーフゾーン液橋 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Prandtl数 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 熱伝導 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 微小重力 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 熱毛細管流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 液体金属 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Marangoni数 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Marangoni convection | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | half-zone liquid bridge | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Prandtl number | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | heat conduction | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | microgravity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | thermocapillary flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | liquid metal | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Marangoni number | |||||
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Pr数流体のハーフゾーン橋中の3次元振動流の数値シミュレーション | |||||
著者 |
今石, 宣之
× 今石, 宣之× 安廣, 祥一× 依田, 真一× Imaishi, Nobuyuki× Yasuhiro, Shoichi× Yoda, Shinichi |
|||||
著者所属 | ||||||
九州大学機能物質科学研究所 | ||||||
著者所属 | ||||||
九州大学機能物質科学研究所 | ||||||
著者所属 | ||||||
宇宙開発事業団 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Advanced Material Study, Kyushu University | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Advanced Material Study, Kyushu University | ||||||
著者所属(英) | ||||||
en | ||||||
National Space Development Agency of Japan | ||||||
出版者 | ||||||
出版者 | 宇宙開発事業団 | |||||
出版者(英) | ||||||
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, 2001-March 31, 2002 en : NASDA Technical Memorandum: Marangoni Convection Modeling Research: Annual Report April 1, 2001-March 31, 2002 p. 129-155, 発行日 2002-12-27 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Several sets of numerical simulations were conducted to give realistic understandings of oscillatory Marangoni convection in half-zone liquid bridges of low Prandtl number fluid with various aspect ratios (from 0.6 to 2.2). Special emphasis was placed on the effects of the less-conductive supporting rods on the transition from axisymmetric steady flow to three dimensional steady and also to oscillatory three dimensional flow. The new simulation results revealed that the conductive heat transfer through the small gaps (1 mm in total) between the melt/rod interface and the temperature measuring points causes significant temperature drop which provide with serious error in estimating Marangoni numbers. This conductive temperature drop is the major reason of the discrepancy between the numerical results in preceding years and the experimental results obtained in NASDA. The effect of the finite conductivity of the rods causes additional effect through the non-uniform temperature distributions on the melt/rod interface. This effect is not negligible but yet minor. | |||||
ISSN | ||||||
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 | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00364784 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0045403005 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: NASDA-TMR-020026E |