【作者】 章晋雄；

【导师】 牛争鸣；

【作者基本信息】 西安理工大学 ， 水力学及河流动力学， 2003， 硕士

【摘要】 南水北调中线工程是一个特大型跨流域调水工程，主要供水目标为京、津、华北地区，主要任务是满足城市生活、工业、生态环境等用水。中线总干渠线路长，流量大，分水口门多，控制闸门多，是一个供水范围广、交叉建筑物多、运行控制复杂的大型渠道输水系统。 根据中线渠道规划和近期调度方案，中线工程北调水量过程变化不均，总干渠沿线分水口门的需水量是按旬变化的，由于费用以及用水灵活性的原因，需要渠道系统对水流变化能作出迅速的响应。本系统作为南水北调中线工程仿真系统的一个子系统，从提高工程的输水效率，同时又保证工程的顺利、安全和稳定的运行的研究目的出发，建立了中线渠道仿真模型，对中线总干渠的水力控制运行输水系统进行了仿真研究和开发，从而为工程设计、运行管理以及安全运行提供参考和依据。 本文首先从中线渠道的水力控制运行方案规划的选择和论证入手，应用系统仿真的基本理论的方法，以分布参数的偏微分方程的渠道系统模型为基础，采用成熟的离散差分格式，建立了中线渠道的一维非恒定流仿真开发平台，并结合面向对象的仿真建模方法，开发了有友好人机界面、模块化的、易扩展的南水北调中线输水渠道的仿真软件。根据长江水利委员会提供的渠道设计规划及调水资料，本系统仿真了中线渠道的输水过程，预演了渠道的调度运行方案，进行了节制闸间距的优化研究，通过一系列的仿真试验，验证了渠道的供水能力以及渠道调度运行的水位波动是否会破坏渠道衬砌的安全问题，提出了节制闸间距优化的合理区间，并通过对不同过闸流量过程方案进行仿真，以供水的的灵活性和保证运行安全为目标，对工程建成后的调度运行提出了建议，最后，本文还对渠道一维流场动态仿真显示技术的实现进行了探讨。更多还原

【Abstract】 China’s Middle Route Southto-North Water Transfer Project is a great transportation project to supply the need of life, industry and environment water in such regions as Beijing, Tianjing and North-China. The main channel with long route, large discharge, number of dividing and control gates is also a great transportation system with wide areas for water supply, numerous crossing construction and complicated ’running control.According to the layout and current operation plan of the Middle Route channel, the water quantity from Middle Route project is varying and the need of the water in every dividing gate is also varying along the channel. In view of the expenses and the transportation flexibility, it’s necessary that the transportation channel can respond to the change of the water quantity. The aim of this simulation subsystem for China’s Middle Route South-to-North Wate Transfer Project is to improve the transportation efficiency of the project and to ensure the stability and security of the running. In this system, after the establishment of the simulation model of the Middle Route channel, the simulation and research is done for hydrodynamic Control Transportation System of main Channel. The results should supply reference to the design, the management and the security of the channel.Firstly, this paper is beginning with the compare to several hydrodynamic Control measures of the channel. The basic theories of system simulation areapplied in the establishment of one dimension and unsteady flow simulation platform in the channel, which is also based on differential equation with distributed parameter and mature discrete-format. Secondly, the simulation soft of transportation channel is friendly, alternating, modular and extendable because its development is linked with Object-Oriented modeling method. Thirdly, based on transportation data in the design and layout of the channel supplied by the Changjiang Water Conservancy Committee, the transportation process of the Middle Route channel is simulated in this paper, and the operation and running plans are previewed. At the same time, the optimization of the distance between two control gates is studied. Based on a series of simulation experiments, results are used to approve the transportation ability of the channel and it’s also analyzed whether the fluctuation of the water lever is over the maximal bound so as to destroy the scaleboard on the channel, the reasonable distance between two control gates is optimized. In view of the agility and security in the transportation, some suggestion on the running of the project can be obtained after the simulation for series of plans under different discharge across gates. Finaly, the dynamic display technic of one dimension flow is discussed.更多还原