摘要
中国逐步建成由渠道、水库、闸门、泵站等以及与自然水系组成的较为完备水资源调配工程体系,但是如何分析这些工程联控与水流运动特性的相互作用机制成为研究重点和难点.在分析了闸堰、倒虹吸、水泵、渡槽、隧道和涵洞等建筑物调控机制的基础上,详细推导了与非恒定流计算模型无缝耦合的流域水量调控建筑物的计算模式,提出并建立了耦合多类型建筑物作用下的流域水量调控非恒定流数值计算模型,能连续模拟复杂水系系统中边界条件变化情景下的水位和流量时空过程.该模型对经典算例中的树状或环状河网及闸堰调控作用的水流过程进行了模拟,结果表明具有较好稳定性和较高精度,能够应用于水资源调度、水力过渡过程研究等方面.
Based on studying the regulati computation mode, an unsteady flow on mechanisms of hydraulic structures and building their mathematical model of water allocation of fiver basin was developed,which could continuously simulate the temporal and spatial change of stage and flow affected by the complex boundaries. The agreement of its final computation results with the test data indicated that the model had a good stability and high precision in simulating steady and unsteady f^ow of tree-type or looped river networks, even where weir exists. The results showed that the developed mathematical model could be applied in the study on water resources dispatch,water power transient process, et al.
出处
《应用基础与工程科学学报》
EI
CSCD
北大核心
2013年第5期866-880,共15页
Journal of Basic Science and Engineering
基金
"十二五"国家科技支撑计划项目(2013BAB05B01)
国家自然科学基金项目(51209223
51109112)
水文水资源与水利工程科学国家重点实验室开放研究基金项目(2011491911
51309254)
"水体污染控制与治理"国家科技重大专项(2012ZX07205-005)
关键词
水力学
河网
水循环
非恒定流
内边界
调控
hydraulics
fiver network
water cycle
unsteady flow
inner boundary
regulation and operation
