| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
越流型水制の周りにおける流速分布 : 現地観測と数値シミュレーション |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Velocity distribution around submerged spur dikes : field observation and numerical simulation |
|
言語 |
en |
| 作成者 |
青木, 政一
吉村, 亮
玉井, 信行
河原, 能久
石川, 浩
安田, 実
|
| 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 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Spur dike |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
spiral current |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
primary and intermittent vortex |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
two-dimensional flow model |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
two-layer model |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
finite element method |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
510 |
| 内容記述 |
|
|
内容記述 |
At meander concave bank, Spur dike is appropriate for protecting bank from erosion and control bed topography. But the flow around spur dike are occur transverse component of spiral current. The meander zone is expanded to overcome the frictional resistance of the channel boundary in case during floods. So, without designing spur dike by more carefully using detail survey, numerical simulation and laboratory experimentation test, the scour and deposition of sediment occur a undefined and unexpected place by the stream flow variations caused by flood. Numerical simulation a two-layer model was developed as the extension of the two-dimensional flow model could get good result, comparing with field measurement distributions of velocity around spur dikes in Ushizu River, Saga Prefecture Kyushu region. The field observation continued from 1994 to 1996 covering the pre-and past-construction periods of the spur dikes. The characteristics of physical current at low and high water have been studied through field measurement and numerical simulation using two dimensional flow models. At result of spiral current, primary and intermittent vortex deflected current could define by numerical simulation. This basic equations are constructed by the finite element method to be appropriate for complicated topography like around spur dikes. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
土木学会 |
| 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 |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 開始ページ |
|
|
開始ページ |
291 |
| 書誌情報 |
河川技術に関する論文集
河川技術に関する論文集
巻 6,
p. 291-296,
発行日 2000-06
|
| 旧ID |
16618 |
kasengijutsu_6_291.pdf (764.6 KB)
