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: 文書・図像類

Author: Nienhueser, Ch.ほか

Publisher: 宇宙開発事業団

Publication date: 2000-09-29

Material Format: Digital

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Note (General)：: The linear stability of the steady 2D flow in cylindrical half-zones is investigated for intermediate Prandtl numbers. In a second step, the analysis ...

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Material Type: 文書・図像類
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): 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
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=41251&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=41251&item_no=1&attribute_id=31&file_no=1
Access Restrictions: 限定公開
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