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Study of Evaporation and Condensation Problems by Kinetic Theory
https://jaxa.repo.nii.ac.jp/records/34519
https://jaxa.repo.nii.ac.jp/records/345190e09b6fd-8fe9-421b-bb70-51c6e5800606
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SA2401243.pdf (4.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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| 公開日 | 2015-03-26 | |||||||
| タイトル | ||||||||
| タイトル | Study of Evaporation and Condensation Problems by Kinetic Theory | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | departmental bulletin paper | |||||||
| 著者 |
MATSUSHITA, Tadashi
× MATSUSHITA, Tadashi
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| 出版者 | ||||||||
| 出版者 | 東京大学宇宙航空研究所 | |||||||
| 出版者（英） | ||||||||
| 出版者 | Institute of Space and Aeronautical Science,University of Tokyo | |||||||
| 書誌情報 |
en : ISAS report/Institute of Space and Aeronautical Science,University of Tokyo 巻 41, 号 5, p. 91-203, 発行日 1976-05 |
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| 抄録（英） | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | The half-space evaporation and condensation problem is investigated by using the linearized BGK model equation as the governing equation and the finite element method as a tool. Numerical predictions of microscopic and macroscopic temperature and density slip coefficients based upon the finite element mothod are compared with alternative numerical results. Special attributes of the finite element method are discussed in the context of this example problem. Next, by applying the present method to the two-surface evaporation and condensation problem, the density and temperature distributions in the vapor phase and the mass flux from the high temperature surface to the low one are obtained for the various inverse Knudsen numbers. The negative temperature gradient in the vapor phase between the two surfaces is observed in some particular conditions and explained from the kinetic theory viewpoint. Furthermore, by employing the finite element method to the two-surface evaporation and condensation problem in the presence of noncondensable gas, the effects of the noncondensable gas on the mass flux and on the negative temperature gradient are investigated. For the description of this problem, the linearized GK model equations are used. As a result, it is found that the presence of noncondensable gas plays a decisive role in retarding the mass flow rates and makes the occurrence of the negative temperature gradient difficult. | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0372-1418 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA00675986 | |||||||
| 資料番号 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 資料番号: SA2401243000 | |||||||
