Flow at 90° equal-width open-channel junction

淡江大學機構典藏 > 工學院 > 水資源及環境工程學系暨研究所 > 期刊論文 > Item 987654321/44604

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題名:	Flow at 90° equal-width open-channel junction
作者:	許中杰;Hsu, Chung-chieh;Wu, Feng-shuai;Lee, Wen-jung
貢獻者:	淡江大學水資源及環境工程學系
日期:	1998-02
上傳時間:	2010-03-26 16:30:04 (UTC+8)
出版者:	Reston: American Society of Civil Engineers (ASCE)
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.
關聯:	Journal of Hydraulic Engineering 124(2), pp.186-191
DOI:	10.1061/(ASCE)0733-9429(1998)124:2(186)
顯示於類別:	[水資源及環境工程學系暨研究所] 期刊論文

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