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A Numerical Investigation of Flow Rate Effect on Vortices in Intake Sump
http://hdl.handle.net/10458/6405
http://hdl.handle.net/10458/64052f39c965-f53d-4bb9-b58f-3638fc2fba53
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (1.7 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2020-06-21 | |||||
| タイトル | ||||||
| タイトル | A Numerical Investigation of Flow Rate Effect on Vortices in Intake Sump | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Numerical analysis, VOF multiphase model, Minimum level of air-water interface, Vortex behavior | |||||
| 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 |
B, シン
× B, シン |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The effect of the flow rate on free surface vortices in pump sump was investigated by numerical approach. Free surface flow in an intake channel was solved by using finite volume method for RANS equations with k-ω SST turbulence model. A VOF multiphase model and the open channel model were used to solve the multiphase flow in the sump. Minimum level of air-water interface and iso-surfaces of vortices were used to identify the location and shape of the free surface as well as surface vortices. By monitoring the air-water interface with varying flow rate, it was found that when the flow rate increased, more free surface vortices appeared. The formation mechanism of free surface vortices and the pulling air bubbles as well as the development process of vortices were clarified by using the volume rendering method and air volume fraction contours. The locations of the center core of air-entrained vortices on the free surface were in good agreement with those of experiments. | |||||
| 言語 | en | |||||
| 書誌情報 |
ja : 宮崎大学工学部紀要 en : Memoirs of Faculty of Engineering, University of Miyazaki 巻 47, p. 41-44, 発行日 2018-07 |
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| 出版者 | ||||||
| 出版者 | 宮崎大学工学部 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Faculty of Engineering, University of Miyazaki | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 05404924 | |||||
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| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00732558 | |||||
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| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
