Numerical simulation of Marangoni convection in consideration of free surface displacement

Material type: 文書・図像類

Author: 後藤, 雅享ほか

Publisher: 宇宙開発事業団

Publication date: 2002-12-27

Material Format: Digital

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Note (General)：: Thermocapillary-driven convection in a half-zone liquid bridge has been extensively examined hitherto. The dynamic free-surface deformation was often ...

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Material Type: 文書・図像類
Title: Numerical simulation of Marangoni convection in consideration of free surface displacement
Author/Editor: 後藤, 雅享
上野, 一郎
河村, 洋
依田, 真一
Goto, Masayuki
Ueno, Ichiro
Kawamura, Hiroshi
Yoda, Shinichi
Author Heading: 後藤, 雅享
上野, 一郎
河村, 洋
依田, 真一
Goto, Masayuki
Ueno, Ichiro
Kawamura, Hiroshi
Yoda, Shinichi
Publication, Distribution, etc.: 宇宙開発事業団
Publication Date: 2002-12-27
Publication Date (W3CDTF): 2002-12-27
Alternative Title: 自由表面変位を考慮に入れたマランゴニ対流の数値シミュレーション
Periodical title: 宇宙開発事業団技術報告: Marangoni Convection Modeling Research: Annual Report April 1, 2001-March 31, 2002 = NASDA Technical Memorandum: Marangoni Convection Modeling Research: Annual Report April 1, 2001-March 31, 2002
Pages: 73-106
ISSN (Periodical Title): ISSN : 1345-7888
Text Language Code: eng
Subject Heading: Marangoni対流
数値シミュレーション
ハーフゾーン液橋
熱毛細管流
自由表面変形
計算格子
フローティングゾーン法
Prandtl数
無次元数
計算流体力学
Marangoni convection
numerical simulation
half-zone liquid bridge
thermocapillary flow
free surface deformation
computational grid
floating zone method
Prandtl number
dimensionless number
computational fluid dynamics
Target Audience: 一般
Note (General): Thermocapillary-driven convection in a half-zone liquid bridge has been extensively examined hitherto. The dynamic free-surface deformation was often observed in the experiments. Influence of the deformation upon the flow in the bridge, however, have not been understood yet. The three-dimensional thermocapillary convection has been simulated numerically with taking the dynamic deformation of the free surface into account. The shape of the liquid bridge is determined by the stress balance over the surface. The computational grid is reconstructed in accordance with the dynamic surface shape deformation. The test fluid considered is Acetone (Pr = 4.4). The free surface deformation is found to be determined primarily by the pressure. A mutual relationship between the surface deformation and the pressure and other quantities is shown in the pulsating or rotating flow states. The maximum points of the deformation in the vicinity of the hot and cold disks are azimuthally twisted.
資料番号: AA0045403003
レポート番号: NASDA-TMR-020026E
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=42849&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=42849&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