A Study on Subcritical Open-Channel Junction Flow

• Main Authors: Wu , Han-Ping, 吳翰泙
• Other Authors: Hsu, Chung-Chien
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/22183803017085326686

碩士 === 淡江大學 === 水資源及環境工程學系 === 89 === This study is using the experimental data of previous studies to analysis the circumstances of subcritical open-channel junction flow. And describes a one-dimensional approach to solving both the upstream-to-downstream depth ratio and the energy loss coefficient through non-equal width junction flow over horizontial beds. The results are found to be in good agreement with the experimental data. The depth ratio and energy loss coefficient is increase with increase junction angle and with increase downstream Froude number. Besides, the cross-section 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 and the junction angle decreases.