Numerical calculations and stability analysis: Linear stability of the two-dimensional flow in half-zones: The influence of free surface heat transfer, aspect ratio, and volume of liquid

• Material Type: 規格・テクニカルリポート類
• Title: Numerical calculations and stability analysis: Linear stability of the two-dimensional flow in half-zones: The influence of free surface heat transfer, aspect ratio, and volume of liquid
• Author/Editor: Nienhueser, Ch.; Kuhlmann, Hendrik C.; Rath, H. J.; 依田, 真一; Kuhlmann, Hendrik. C.; Yoda, Shinichi
• Author Heading: Nienhueser, Ch.; Kuhlmann, Hendrik C.; Rath, H. J.; 依田, 真一; Kuhlmann, Hendrik. C.; Yoda, Shinichi
• Publication, Distribution, etc.: 宇宙開発事業団
• Publication Date: 2000-09-29
• Publication Date (W3CDTF): 2000-09-29
• Alternative Title: 半ゾーンにおける2次元流の線形安定性:液体の自由表面熱移動、アスペクト比、および体積の影響
• Periodical title: 宇宙開発事業団技術報告: Marangoni Convection Modeling Research: Annual Report April 1, 1999 - March 31, 2000 = NASDA Technical Memorandum: Marangoni Convection Modeling Research: Annual Report April 1, 1999 - March 31, 2000
• Pages: 213-246
• ISSN (Periodical Title): ISSN : 1345-7888
• Text Language Code: eng
• Subject Heading: 安定性; 2次元流; 熱移動; 温度プロファイル; 微小重力; マランゴニ対流; 数値解析; 振動; stability; two dimensional flow; heat transfer; temperature profile; microgravity; Marangoni convection; numerical analysis; oscillation
• Target Audience: 一般
• Note (General): 出版タイプ： NA; The linear stability of the steady 2D flow in cylindrical half-zones is investigated for intermediate Prandtl numbers. In a second step, the analysis is extended to half zones with a statically deformed free surface. The cylindrical model led to new insights into the role of heat transfer through the free surface. In particular, the cooling effect by evaporation of volatile fluids qualitatively modifies the instability mechanism for intermediate Prandtl numbers. Parameter variations have been carried out to compare experimental and numerical results. A new mathematical model has been developed for the half-zone configuration with a non-cylindrical free surface and a numerical code has been implemented. After validation of the code and grid-convergence tests, the linear stability of the steady 2D flow has been investigated for different volumes of fluid and for zero gravity conditions. Results for small and intermediate Prandtl numbers confirm the strong influence of the geometry on the critical Reynolds and azimuthal wave numbers, but not on the characters of the instabilities.; 資料番号: AA0010763007; レポート番号: NASDA-TMR-000006E
• Periodical Title (NCID): AN00364784; https://ci.nii.ac.jp/ncid/AN00364784
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ