Investigation of free surface heat transfer effect on oscillatory thermocapillary flow of high Prandtl number fluid

• 資料種別: 文書・図像類
• タイトル: Investigation of free surface heat transfer effect on oscillatory thermocapillary flow of high Prandtl number fluid
• 著者・編者: 鴨谷, 康弘; Wang, A.; 依田, 真一; Kamotani, Yasuhiro; Yoda, Shinichi
• 著者標目: 鴨谷, 康弘; Wang, A.; 依田, 真一; Kamotani, Yasuhiro; Yoda, Shinichi
• 出版事項: 宇宙開発事業団
• 出版年月日等: 2003-08-29
• 出版年（W3CDTF）: 2003-08-29
• 並列タイトル等: 高プラントル数流体の振動熱毛管流に対する自由表面熱移動効果の研究
• タイトル（掲載誌）: 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
• 掲載ページ: 21-41
• ISSN（掲載誌）: ISSN : 1345-7888
• 本文の言語コード: eng
• 件名標目: 熱伝達; Prandtl数; 熱毛管流; 液柱; マランゴニ対流; 振動流; 気・液相互作用; 数値シミュレーション; heat transfer; Prandtl number; thermocapillary flow; liquid bridge; Marangoni convection; oscillating flow; gas-liquid interaction; numerical simulation
• 対象利用者: 一般
• 一般注記: The effect of heat transfer at the free surface on oscillatory thermocapillary flow in liquid bridges of high Prandtl number fluids is investigated experimentally as well as numerically. Both net heat loss and gain conditions are studied. The air motion is simulated numerically in order to compute the free surface heat transfer rates for given experimental conditions. It has been shown earlier that the critical Marangoni number (Ma(sub cr)) decreases substantially with increasing free surface heat loss. It is shown in the present work that the critical conditions for various heat loss cases can be correlated by a surface deformation parameter (S-parameter) and the modified Biot number. When the free surface gains heat from the surrounding air, the situation changes substantially. Ma(sub cr) decreases sharply when the free surface heat transfer changes to a net gain. The oscillatory flow structure also changes. It is discussed that dynamic free surface deformation near the cold wall is important in the oscillation phenomenon with net heat gain and that dynamical interactions between the liquid and air flows near the cold wall modify this deformation effect. The main objective of the present work is to understand the physical mechanism of transition to oscillatory flow for high Prandtl number fluid.; 資料番号: AA0046980001; レポート番号: NASDA-TMR-030004E
• 一次資料へのリンクURL: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=42950&item_no=1&attribute_id=31&file_no=1
• オンライン閲覧公開範囲: 限定公開
• 連携機関・データベース: 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
• 提供元機関・データベース: 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