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自然流下系管水路における水柱分離を伴うwater hammerの最大水撃圧の推定
https://kagawa-u.repo.nii.ac.jp/records/3198
https://kagawa-u.repo.nii.ac.jp/records/3198437491d5-5c7f-47ea-a0fa-e82eb72e9cec
名前 / ファイル | ライセンス | アクション |
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AN00038339_33_2_133.pdf (347.5 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
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公開日 | 2012-03-27 | |||||||||||
タイトル | ||||||||||||
言語 | ja | |||||||||||
タイトル | 自然流下系管水路における水柱分離を伴うwater hammerの最大水撃圧の推定 | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | On the method of estimating the water hammer pressure with accompanying column separation in the natural flow pipe system. | |||||||||||
言語 | ||||||||||||
言語 | jpn | |||||||||||
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 | |||||||||||
アクセス権 | ||||||||||||
アクセス権 | open access | |||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
著者 |
西山, 壮一
× 西山, 壮一
WEKO
1706
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | In consulting the safety of the pipeline, it is important to estimate the ultimate pressure of the water hammer. In the case of the water hammer which occures at the downstream valve, the ultimate pressure of the water hammer is caused by an adverse flow of the steady state condition. There are two main uncertain factors which influence the ultimate water hammer pressure which accompanyes the column separation. They are the release and solution of air in pressure change, and the shape of the column separation. Accordingly, if these factors could be examined, it would be possible to estimate the ultimate water hammer pressure. But at this time, there is little information about these factors. In this paper, the characteristics of the water hammer which accompany the column separation were described. A model of a column separation was made, and some assumetions were used, an estimation of the ultimate pressure of water hammer was also discussed. And the results of the analytical method used was compared with those of the experimental method. Concerning the ultimate water hammer pressure, they are almost in agreement. | |||||||||||
言語 | en | |||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | パイプラインの安全性を検討する場合, water hammerの最大水撃圧を知ることは重要なことである. バルブの下流に発生するwater hammerの場合, 最大水撃圧は定常状態の逆流によって生じている. 水柱分離を伴うwater hammer において, 最大水撃圧に影響を及ぼす二つのおもな不確定要素がある. これらは, 圧力変動に伴う空気の逸出と消滅および水柱分離の形状である. したがって, これらの要素が明確になれば, 最大水撃圧を推定することが可能である. しかしながら, 現状においては, これらについては不明である. 本論文においては, 水柱分離を伴うwater hammerの特性を述べ, さらに水柱分離のモデルが示され, 最大水撃圧の推定方法が述べられている. 解析結果と実験結果が比較されていて, 最大水撃圧に関しては, 両者は大略一致した. | |||||||||||
言語 | ja | |||||||||||
書誌情報 |
ja : 香川大学農学部学術報告 en : Technical bulletin of Faculty of Agriculture, Kagawa University 巻 33, 号 2, p. 133-140, 発行日 1982-03-01 |
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言語 | ja | |||||||||||
出版者 | 香川大学農学部 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | PISSN | |||||||||||
収録物識別子 | 0368-5128 | |||||||||||
書誌レコードID | ||||||||||||
収録物識別子タイプ | NCID | |||||||||||
収録物識別子 | AN00038339 | |||||||||||
著者版フラグ | ||||||||||||
出版タイプ | VoR | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
WAID | ||||||||||||
1706 | ||||||||||||
KEID | ||||||||||||
2597 |