南水北调中线工程非恒定输水响应及运行控制研究.doc

南水北调中线工程非恒定输水响应及运行控制研究 (申请清华大学工学博士学位论文) 培养单位 ： 水利水电工程系 学科 ： 水利工程 研究生 ： 张 成 指导教师 ： 王 光 谦 教 授 二○○八年四月 南水北调中线工程非恒定输水响应及运行控制研究 张 成 Research on Response of Unsteady Water Transport and Operation Control in the Middle Route of the South-to-North Water Diversion Project Dissertation Submitted to Tsinghua University in partial fulfillment of the requirement for the degree of Doctor of Engineering by Zhang Cheng ( Hydraulic Engineering ) Dissertation Supervisor : Professor Wang Guangqian April, 2008 关于学位论文使用授权的说明 本人完全了解清华大学有关保留、使用学位论文的规定，即： 清华大学拥有在著作权法规定范围内学位论文的使用权，其中包括：1）已获学位的研究生必须按学校规定提交学位论文，学校可以采用影印、缩印或其他复制手段保存研究生上交的学位论文；2）为教学和科研目的，学校可以将公开的学位论文作为资料在图书馆、资料室等场所供校内师生阅读，或在校园网上供校内师生浏览部分内容；3）根据《中华人民共和国学位条例暂行实施办法》，向国家图书馆报送可以公开的学位论文。 日 期： 日 期： 摘 要 南水北调中线工程是一项特大型跨流域调水工程，其渠线长、南北跨度大，供水区范围广全程自流输水且无合适的调节水库的非恒定流特性与输水过程稳定性Abstract The Middle Route of the South-to-North Water Diversion Project (MRSNWD) is a large-scale water conveyance project with long channel, large span, wide range of supplied region and all flow automatically without any reservoir along the channel; therefore the hydrodynamic problem of long-route water conveyance and current transmit and response will be very complicated. Characteristic of unsteady-flow in main channel and stability of water conveyance and the best operation control are key problems to insure the channel transmit water safely and stably. In this paper a one-dimensional numerical model was developed for unsteady-flow in a large-scale conveyance channel with complex inner boundary conditions. Generalized equations describing the complex inner boundary conditions such as regulators and inverted siphons were solved together with St. Venant equations by Preissmann method with good stability and high precision in the model. Different flow pattern in different opening of the regulators was continuously simulated. In order to implement the simulation and real-time dis