期刊論文
學年 | 90 |
---|---|
學期 | 2 |
出版(發表)日期 | 2002-07-01 |
作品名稱 | Subcritical 90° Equal-Width Open-Channel Dividing Flow |
作品名稱(其他語言) | |
著者 | Hsu, C.C.; Tang C.J.; Lee W.J.; Shieh, M.Y. |
單位 | |
出版者 | |
著錄名稱、卷期、頁數 | Journal of Hydraulic Engineering 128(7), p.716-720 |
摘要 | Based on experimental observations, for a subcritical, right-angled, equal-width, open-channel dividing flow over a horizontal bed, the contraction coefficient at the maximum width-contracted section in the recirculation region is almost inversely related to the main channel upstream-to-downstream discharge ratio. The energy heads upstream and downstream of the division in the main channel are found to be almost equal. Under the assumption that the velocities are nearly uniformly distributed at the considered boundaries, the depth-discharge relationship follows the commonly used energy equation. The predicted results correlate fairly with the experimental data from this and other studies. The energy-loss coefficient of a division is expressed in terms of discharge ratio, upstream Froude number, and depth ratio. An expression for practical engineering applications is to determine the maximum possible branch-channel discharge at a given upstream discharge with a prescribed downstream Froude number or the maximum possible downstream Froude number if both branch- and main-channel discharges are prescribed. |
關鍵字 | Open channel flow;Water discharge;Contraction;Froude number |
語言 | en_US |
ISSN | 0733-9429 |
期刊性質 | 國外 |
收錄於 | SCI SSCI EI |
產學合作 | |
通訊作者 | Hsu, C.C. |
審稿制度 | 是 |
國別 | TWN |
公開徵稿 | |
出版型式 | ,紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/116749 ) |