教師資料查詢 | 類別: 期刊論文 | 教師: 許中杰 HSU CHUNG-CHIEH (瀏覽個人網頁)

標題:等寬明渠直交匯流流場之研究
學年84
學期1
出版(發表)日期1995/12/01
作品名稱等寬明渠直交匯流流場之研究
作品名稱(其他語言)A study of equal-width subcritical open-channel junction flow
著者許中杰; 吳豐帥
單位淡江大學水資源及環境工程學系
出版者臺北市中國土木水利工程學會
著錄名稱、卷期、頁數中國土木水利工程學刊=Journal of the Chinese Institute of Civil & Hydraulic Engineering 7(4)頁549-554
摘要本研究探討等寬明渠亞臨界直交匯流於交會區上、下游斷面之水位關係及迴流區最大收縮斷面之收縮係數。本研究進行模型實驗並配合實驗資料而推導一維性流場解析模式。應用實驗資料將斷面動量及能量修正係數為主、支渠交匯界面之側入流平均流向角皆表示為流量比之關係式。流量比表示主渠於側渠交匯前、後流量之比值。配合一維性解析模式及上述經驗式可求得交匯區上、下水深比及迴流區最大收縮斷面之收縮係數,結果顯示解析解與實驗資料十分吻合。因此,本研究之水深與收縮係數之解析模式可為一維性明渠演算式交匯處之內部條件。;This paper presents an experimental and analytical study of the open-channel right-angled junction flow. Both channels are of rectangular shape with constant and equal width having horizontal beds. The flow is subcritical and one-dimensional analysis of flow is employed. The mean flow angle at the entrance of the branch channel as well as the energy and momentum correction coefficients are expressed by empirical functions of discharge ratio using the experimental data. The discharge ratio is defined as the inflow to the outflow in the main channel. Using the proposed empirical formulae and the analytical method, the ratio of the upstream depth to the depth at the maximum contraction section, and the contraction coefficient therein can be determined. The results are compared with experimental data and found to be in good agreement.
關鍵字收縮係數;流向角;流量比;Contraction coefficient;Flow angle;Discharge ratio
語言中文
ISSN1015-5856
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式紙本
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