摘要
针对矩形平底渠槽经典的自由临界水跃长度经验公式很多，且结果出入很大的现实，利用附壁射流原理，推求出了一种计算水跃长度的理论公式，并假设8道例题，列举22个旧的经验公式进行计算比较，得出了新公式和陈、欧两个公式是比较适宜的公式的结论。
There are many classic formulas for calculating the length of free and critical hydraulic jump inrectangular and horizontal bed flume. However, the calculating results by the formulas are very different. Atheoretical formula for calculating hydraulic jump length is developed by using the adhesive wall jet flowprinciple in this paper. The selected eight examples are studied by comparison with the 22 classic formulas.The new formula and the Chen and On formulas are suitable for practice.
出处
《中国农村水利水电》
1997年第10期38-41,共4页
China Rural Water and Hydropower
关键词
自由临界水跃
矩形平底渠槽
附壁射流
free and critical hydraulic jump
rectangular and horizontal bed flume
adhesive wall jetflow
