长距离调水工程高填方渠道溃堤洪水演进情景仿真

发布时间：2018-06-04 15:14

本文选题：高填方渠道 + 溃堤洪水演进　；参考：《天津大学》2014年硕士论文

【摘要】：溃堤洪水的情景仿真研究，为长距离调水工程应急管理提供了技术支持，受到了国内外学者的广泛重视。传统单纯的洪水演进计算来分析溃堤洪水规律的手段无法为防洪减灾工作提供及时、形象、精确、直观的预报手段。本文应用情景仿真的概念对溃堤洪水演进进行了仿真模拟，实现了洪水演进的动态可视化，开发了高填方渠道溃堤洪水演进情景仿真分析系统，为防洪部门提供了有效、直观的分析手段。本文取得的主要成果如下：（1）建立了高填方渠道溃堤洪水演进二维数学模型和三维数学模型，分别采用有限差分法和有限体积法对控制方程进行了离散，并采用溃坝模拟实验结果对数学计算模型进行了验证。（2）开发了高填方渠道溃堤洪水演进情景仿真分析系统，设计了系统的总体框架，基于C#语言开发了相关的系统功能模块，解决了溃口位置交互确定、数学计算模型的程序实现等技术问题，实现了溃堤洪水演进模拟计算和对计算结果的交互查询的功能。（3）采用基于生长法的Delaunay三角网生成算法、实体建模方法、纹理映射技术等建立了高填方渠道工程三维场景，采用天空盒技术模拟了场景的环境，并在此基础上结合三维漫游等技术，增强了虚拟场景的交互性与沉浸感，，构建了高填方渠道三维虚拟场景，实现了用户与虚拟场景的实时交互，为工程管理人员提供的直观管理分析平台。（4）以某长距离调水工程高填方渠道作为工程实例，设计了系统的总体结构、开发原则、运行环境以及工作架构模式。
[Abstract]:The scene simulation study of embankment flood has provided technical support for the emergency management of long distance water transfer project, and has been widely paid attention to by scholars at home and abroad. The traditional method of calculating the flood routing to analyze the flood law of embankment failure can not provide a timely, visual, accurate and intuitionistic method for flood control and disaster reduction. In this paper, the concept of scenario simulation is used to simulate the flood routing of embankment break, the dynamic visualization of flood routing is realized, and a scenario simulation analysis system for flood routing of high fill channel is developed, which provides an effective method for flood control departments. An intuitive means of analysis. The main achievements of this paper are as follows: 1) the 2D and 3D mathematical models of flood routing for embankment break of high fill channel are established. The control equations are discretized by the finite difference method and the finite volume method, respectively. The mathematical model is verified by the results of dam break simulation experiment. The simulation and analysis system for flood routing of high fill canal break is developed, the overall framework of the system is designed, and the related system function module is developed based on C # language, which solves the interactive determination of breach location. Some technical problems, such as the program realization of the mathematical calculation model, have realized the function of simulating the flood routing of breakwater break and interactively querying the calculation results. 3) the 3D scene of high fill channel engineering is established by using Delaunay triangle generation algorithm based on growth method, solid modeling method and texture mapping technology, and the environment of scene is simulated by sky box technology. On the basis of this, the interaction and immersion of virtual scene are enhanced, and the 3D virtual scene with high filling channel is constructed, which realizes the real-time interaction between user and virtual scene. Visual management analysis platform for project managers. Taking the high fill channel of a long distance water transfer project as an engineering example, the overall structure, development principle, operating environment and work frame mode of the system are designed.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV122.4

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