應用VB程式語言於自由跌水視窗化之研究

Using Visual Basic Program on Windows-Based of Free Overfall

黃宏信(Hung-Shin Huang) ； 謝俊賢(Chun-Hsien Hsieh) ； 蕭品彥(Pin-Yen Hsiao) ； 陳正炎(Jen-Yan Chen)

《中華水土保持學報》 41卷2期 (2010/06) Pp. 14-33

https://doi.org/10.29417/JCSWC.201006_41(2).0002

摘要

工程上爲了達到治理河道和取水目的常設置跌水工、防砂壩或攔河堰等設施，能使上游河道保持穩定，但因構造物高度落差太大，高速水流沖擊下游河床，產生淘刷導致結構物破壞。本研究利用Visual Basic程式語言設計視窗化模組，由跌水高度H、渠床坡度S及上游水深Y0等作爲水力因子輸入條件，經由視窗化模式演算之後，可得自由跌水流作用下之水流特性、沖擊作用力及能量變化等數據，並呈列於表單中，可使跌水工設計上更爲便利。

關鍵字

自由跌水 ； 視窗化模組 ； 水力參數

並列摘要

The civil structures crossing the river have been widely used in both natural and artificial channels to process the water resource management. For energy dissipation, these structures usually lead to a sudden vertical change of channel slope and induce a free overfall flow. The impact force of drop usually damages the civil structure. This study developed a windows-based design module of free overfall through Visual Basic program. The investigation utilizes several hydraulic parameters such as drop height H, bed slopes S and head depth Y0 to be calculated by the windows-based design module. Therefore, this research can provide the reference for the following design of drop.

並列關鍵字

free overfall ； windows-based moudle ； hydraulic parameter