Numerical simulation of Marangoni convection in consideration of free surface displacement

Material type: 文書・図像類

Author: 橋本, 貴徳ほか

Publisher: 宇宙開発事業団

Publication date: 2003-08-29

Material Format: Digital

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Note (General)：: Thermocapillary-driven convection in a half-zone liquid bridge has been extensively examined. A large number of researches have been conducted concern...

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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: 橋本, 貴徳
上野, 一郎
河村, 洋
依田, 真一
Hashimoto, Takanori
Ueno, Ichiro
Kawamura, Hiroshi
Yoda, Shinichi
Author Heading: 橋本, 貴徳
上野, 一郎
河村, 洋
依田, 真一
Hashimoto, Takanori
Ueno, Ichiro
Kawamura, Hiroshi
Yoda, Shinichi
Publication, Distribution, etc.: 宇宙開発事業団
Publication Date: 2003-08-29
Publication Date (W3CDTF): 2003-08-29
Alternative Title: 自由表面変位を考慮し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: マランゴニ対流現象モデル研究:アニュアルレポート2002 = NASDA Technical Memorandum: Marangoni Convection Modeling Research: Annual Report April 1, 2002-March 31, 2003
Pages: 65-98
ISSN (Periodical Title): ISSN : 1345-7888
Text Language Code: eng
Subject Heading: 数値シミュレーション
熱毛管流
マランゴニ対流
アセトン
流れ分布
温度勾配
Navier-Stokes方程式
FSD
numerical simulation
thermocapillary flow
Marangoni convection
acetone
flow distribution
temperature gradient
Navier-Stokes equation
Target Audience: 一般
Note (General): Thermocapillary-driven convection in a half-zone liquid bridge has been extensively examined. A large number of researches have been conducted concerning the transition of the flow field. Physical mechanism of the transition, however, has not been fully understood. In the present study, three-dimensional numerical simulations taking with and without dynamic free surface deformation (DSD) into account are carried out to evaluate the effect of the surface deformation upon the flow field. The surface shape is solved by considering the stress balance on the free surface, and the calculation coordinate is reconstructed at every time step with employing a boundary fitted coordinate. The test fluids are acetone (Pr = 4.38) and 2cSt silicone oil (Pr = 28.11). The free surface deformation is determined primarily by the pressure variation. For acetone, the effect of the DSD upon critical point and flow field is quite small in the range of present numerical simulation. Mutual relation among the DSD, temperature, pressure and axial velocity is obtained.
資料番号: AA0046980003
レポート番号: NASDA-TMR-030004E
Access Restrictions: 限定公開
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