| 缺乏资料条件下倒灌河段流速的近似确定方法 |
| |
| 引用本文： | 华祖林,芮孝芳,黄国如,罗缙. 缺乏资料条件下倒灌河段流速的近似确定方法[J]. 水科学进展, 2001, 12(2): 210-214 |
| |
| 作者姓名： | 华祖林 芮孝芳 黄国如 罗缙 |
| |
| 作者单位： | 1.河海大学水文水资源及环境学院, 江苏南京210098; |
| |
| 摘 要： | 倒灌河段受干流影响往往存在双向流动,其流速的确定与单一河道明显不同,对缺乏必要水文和地形资料的大量中小倒灌河段,使用数学模型或物理模型常常遇到困难.针对这一情形,本文采用物理模型,结合数学模型及多元回归分析方法,提出了确定倒灌河段最大流速的经验公式,具有一定的应用价值,为工程问题中倒灌河段流速确定作了有益的尝试.
|
| 关 键 词： | 倒灌河段 流速 经验公式 物模试验 数学模型 多元回归分析 |
| 文章编号： | 1001-6791(2001)02-0210-05 |
| 收稿时间： | 2000-03-06 |
| 修稿时间： | 2000-03-06 |
A Method for Velocity Calculation of Downdraft Reach under Lack of Hydrologic Data |
| |
| HUA Zu-lin,RUI Xiao-fang,HUANG Guo-ru,LUO Jin. A Method for Velocity Calculation of Downdraft Reach under Lack of Hydrologic Data[J]. Advances in Water Science, 2001, 12(2): 210-214 |
| |
| Authors: | HUA Zu-lin RUI Xiao-fang HUANG Guo-ru LUO Jin |
| |
| Affiliation: | 1.College of Water Resources & Environment, Hohai University, Nanjing 210098, China;2.Department of hydraulic engineering, Tsinghua University, Beijing 100084, China |
| |
| Abstract: | The bi-directional flow often happens in the downdraft reach due to the influence of main thannel,so that its velocity calculation is obviously different from normal river in practical engineering.In many condition,the necessary hydrologic data and topography is lacked in these downdraft reaches,then the mathematical and physical model are difficult to apply directly.So based on the combination of physical, mathematical model and multivariate regression analysis for typical downdraft reach,a empirical formula is putted forward in this paper,and can be directly used to determine maximum velocity at a engineering point in downdraft reach. |
| |
| Keywords: | downdraft reach velocity empirical formula physical model mathematical model multivariate regression analysis |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
|
点击此处可从《水科学进展》下载免费的PDF全文 |
|
