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A Kinetic-Model Analysis of the Source Expansion Flow into Vacuum
https://jaxa.repo.nii.ac.jp/records/34532
https://jaxa.repo.nii.ac.jp/records/3453292d2fdca-1ccf-4c84-99cd-292f14551b92
名前 / ファイル | ライセンス | アクション |
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SA2401286.pdf (452.9 kB)
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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 | ||||||
言語 | en | |||||
タイトル | A Kinetic-Model Analysis of the Source Expansion Flow into Vacuum | |||||
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 |
ABE, Takashi
× ABE, Takashi× OGUCHI, Hakuro |
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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 42, 号 9, p. 237-245, 発行日 1977-12 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The source expansion flow into vacuum is analysed on the basis of the complete third-order hierarchy kinetic model, which resembles the Boltzmann equation correctly up to the lower 20 moments regarding the collisional integral. The numerical procedure is deviced so as to be able to take into account the distribution associated with the inverse radial velocity. The solution thus obtained indicates smooth transition from the equilibrium at the sonic point to the non-equilibrium far downstream. Comparison is made with the moment method as well as the simple Krook model. As for the distributions of the temperature and number density, the moment method indicates appreciable deviation from the hierarchy model for greater Knudsen numbers, while the Krook model is in good agreement with the hierarchy model over a wide range of Knudsen numbers. The latter implies that the higher-order moments as the heat flux play no significant role on the behavior of temperature freezing. | |||||
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: SA2401286000 |