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二相系格子ボルツマン法を用いた流体中における粘弾性皮膜固体の挙動解析 : 内部流体の粘度が固体の挙動に与える影響について
http://hdl.handle.net/10091/12013
http://hdl.handle.net/10091/12013ea131c0f-7eb0-4732-a110-9e993f3b8e9a
名前 / ファイル | ライセンス | アクション |
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TransJSME-B_77_4.pdf (8.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-02-18 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 二相系格子ボルツマン法を用いた流体中における粘弾性皮膜固体の挙動解析 : 内部流体の粘度が固体の挙動に与える影響について | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | Numerical Simulation, Lattice Boltzmann Method (LBM), Two-Phase Flow, Viscoelastic Body, Shear Flow, Square Pipe Flow | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | Two-Phase Lattice Boltzmann Simulation of Behavior of a Body with a Viscoelastic Membrane in Fluid Flows : Effect of Internal Fluid Viscosity on Body Behavior | |||||
著者 |
村山, 寿郎
× 村山, 寿郎× 吉野, 正人× 平田, 哲夫 |
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信州大学研究者総覧へのリンク | ||||||
氏名 | 吉野, 正人 | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.ONkpbpkh.html | |||||
信州大学研究者総覧へのリンク | ||||||
氏名 | 平田, 哲夫 | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.WayCZVkh.html | |||||
出版者 | ||||||
出版者 | 日本機械学会 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 日本機械学会論文集B編. 77(773):4-19 (2011) | |||||
書誌情報 |
日本機械学会論文集B編 巻 77, 号 773, p. 4-19, 発行日 2011-01-25 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The behavior of a deformable body with a viscoelasitc membrane in fluid flows is numerically investigated by the two-phase lattice Boltzmann method. In the calculations, the internal fluid of the body is distinguished from the surrounding fluid so that the viscosities of these fluids can be separately specified. Using this method, the deformation of the body under a shear flow is simulated by changing the viscosity ratio η, which is defined as the ratio of the viscosity of the internal fluid to that of the surrounding fluid. It is found that as the viscosity ratio increases, the deformability of the body remains almost constant for 0.1 ≤ η ≤ 1, whereas it decreases linearly for 1 < η ≤ 10. In addition, the behavior of the body in a square pipe flow is simulated for various viscosity ratios. The velocity near the centerline of the pipe decreases with increasing the viscosity ratio, and thus the flow rate becomes reduced. In the case of lower viscosity ratio (0.1 ≤ η ≤ 1), the body becomes a parachute-like shape and approaches toward the centerline of the pipe; that is, axial accumulation is observed. In the case of higher viscosity ratio (e.g., η = 6), the body forms into a slipper-like shape, migrating laterally toward a certain equilibrium position between the wall and the centerline of the pipe. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1884-8338 | |||||
権利 | ||||||
権利情報 | Copyright (c) 2011 社団法人 日本機械学会 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |