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Inverse Energy Cascade Structure of Turbulence in a Bubby Flow (Numerical Analysis Using Eulerian-Lagrangian Model Equations)
http://hdl.handle.net/10098/1741
http://hdl.handle.net/10098/174185f3b18c-7ea8-4b08-8b2e-e257d2b12aba
名前 / ファイル | ライセンス | アクション |
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BD00007290_001.pdf (2.9 MB)
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〓 2000 日本機械学会
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-10-23 | |||||
タイトル | ||||||
タイトル | Inverse Energy Cascade Structure of Turbulence in a Bubby Flow (Numerical Analysis Using Eulerian-Lagrangian Model Equations) | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Multiphase Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Bubble | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Turbulent Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Computational Fluid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Dynamics | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
資源タイプ | other | |||||
著者 |
MURAI, Yuichi
× MURAI, Yuichi× KITAGAWA, Atsuhide× SONG, Xiang-gun× OHTA, Junichi× YAMAMOTO, Fujio |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The inverse energy cascade in bubbly flow is investigated by a numerical simulation using the Eulerian-Lagrangian model in which the governing equations are formulated with emphasis on the translational motion of bubbles in nonuniform flow. In this paper we are concerned with the validation of the numerical model and various parametric dependencies on the inverse cascade. The calculated results reveal that,1)continuous growth of the spatial fluctuation scale in a bubble-induced flow is well predicted by the present numerical model and the results have a good analogy with the experimental results which were introduced in our first report,2) the strong relationship between energy-decaying process and bubble-bubble distance interval is also identified by the present analysis,and 3) the slope of energy-decaying in the high wavenumber region depends on the kinematic viscosity of liquid,and that in the low wavenumber region depends on inhomogeneous buoyancy distribution which changes due to the bubble motion. | |||||
書誌情報 |
The Japan Society of Mechanical Engineers, Series B 巻 43, 号 2, p. 197-205, 発行日 2000-02 |
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出版者 | ||||||
出版者 | 日本機械学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13408054 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | TD00007290 | |||||
著者版フラグ | ||||||
出版タイプ | AO | |||||
出版タイプResource | http://purl.org/coar/version/c_b1a7d7d4d402bcce |