Flow at 90° equal-width open-channel junction
學年 86
學期 2
出版（發表）日期 1998-02-01
作品名稱 Flow at 90° equal-width open-channel junction
作品名稱（其他語言）
著者 許中杰; Hsu, Chung-chieh; Wu, Feng-shuai; Lee, Wen-jung
單位 淡江大學水資源及環境工程學系
出版者 Reston: American Society of Civil Engineers (ASCE)
著錄名稱、卷期、頁數 Journal of Hydraulic Engineering 124(2), pp.186-191
摘要 This paper describes a one-dimensional approach to solving water depth upstream of a subcritical open-channel right-angled junction and to solving the contraction coefficient at the maximum flow constriction. The energy and momentum correction coefficients at the maximum flow constriction were found to be related to the inverse of the upstream-to-downstream discharge ratio of the main channel. The cross-sectional mean flow angle at the branch channel entrance was determined through detailed measurement of velocity vectors and was found to decrease as the discharge ratio increases. The shape index of the separation zone was also checked through observations of surface-dye trajectory and was found to agree with that obtained in previous studies. With known Froude numbers and the energy and momentum correction coefficients at the maximum flow constriction, the one-dimensional prediction and experimental results of this study correlate well to the data of other studies.
關鍵字
語言 en
ISSN 0733-9429
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 紙本
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