Study on the hydraulic reaction of unsteady flows in open channel
-
摘要: 输水渠道中的水位将随流量的改变而产生波动,且由一种恒定流状态过渡到另一种恒定流状态需要经过一段稳定的时间。这一水力变化过程与渠道自身的结构特性、渠道运行方式的选择和流量变化的幅度、速率有关。通过对渠道中的非恒定流进行数值模拟,对不同情况下渠道的水力学响应进行了研究。Abstract: Water levels in open channel fluctuate along with the change of the discharge. The change from one state of steady flow to another will take a period of time. The process of the change is affected by the characteristic of canal structure,the canal operation method,the range of discharge change and the rate of it. The hydraulic reaction of unsteady flow is also studied by means of numerical simulation of the unsteady flows in open channel in different cases.
-
Keywords:
- canal /
- unsteady flow /
- operation method /
- discharge /
- water level
-
-
[1] 徐正凡.水力学[M].北京:高等教育出版社,1986.255-366. [2] Pierre O M,David C R,Jan S.Classification of Canal Control Algorithms[J].Journal of Irrigation and drainage engineering,1998,1:2-5. [3] 美国内务部垦务局.现代灌区自动化管理技术实用手册[M].北京:中国水利水电出版社,2004.35-57. [4] 吴泽宇,周斌.南水北调中线渠道控制计算模型[J].人民长江,2000(5):1-2. [5] 张尚弘,王兴奎.南水北调中线工程节制闸间距研究[J].应用基础与工程科学学报,2001(9):1-2.
计量
- 文章访问数: 302
- HTML全文浏览量: 69
- PDF下载量: 749