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a29b2p26.pdf | 776.39 kB | Adobe PDF | 見る/開く |
タイトル: | 階段状河床波上の流れと抵抗則 |
その他のタイトル: | STRUCTURE AND FRICTION LAW OF FLOW OVER A STEP-POOL BED FORM |
著者: | 芦田, 和男 ![]() 江頭, 進治 ![]() 西野, 隆之 ![]() |
著者名の別形: | ASHIDA, Kazuo EGASHIRA, Shinji NISHINO, Takayuki |
発行日: | 1-Apr-1986 |
出版者: | 京都大学防災研究所 |
誌名: | 京都大学防災研究所年報. B |
巻: | 29 |
号: | B-2 |
開始ページ: | 391 |
終了ページ: | 403 |
抄録: | Shear stress distribution and friction law of flow over step-pool bed forms are basicallyimportant for treating the sediment transport in mountain streams. The present study discussesthe problems such as velocity and shear stress distributions as well as a friction law of flow overstep-pool bed forms.The equipment to measure the shear stress on bed surface is devised. Data of shear stressdistributions are obtained on an artificial step-pool bed form. The meanings of the data arediscussed in relation to those of velocity distributions.The friction law of flow over the step-pool bed form is developed by using such an ideathat energy consumption of a main flow past the crest of the bed form is balanced by the pro-duction of turbulence or eddy in the separation region. The equation of flow resistance is suc-cessfully compared with the flume data which are obtained from the experiments of flow overstep-pool bed, dune bed and strip-roughness bed. |
URI: | http://hdl.handle.net/2433/71952 |
関連リンク: | http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html |
出現コレクション: | No.29 B-2 |
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