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長距離調(diào)水工程高填方渠道潰堤洪水演進(jìn)情景仿真

發(fā)布時(shí)間:2018-06-04 15:14

  本文選題:高填方渠道 + 潰堤洪水演進(jìn); 參考:《天津大學(xué)》2014年碩士論文


【摘要】:潰堤洪水的情景仿真研究,為長距離調(diào)水工程應(yīng)急管理提供了技術(shù)支持,受到了國內(nèi)外學(xué)者的廣泛重視。傳統(tǒng)單純的洪水演進(jìn)計(jì)算來分析潰堤洪水規(guī)律的手段無法為防洪減災(zāi)工作提供及時(shí)、形象、精確、直觀的預(yù)報(bào)手段。本文應(yīng)用情景仿真的概念對潰堤洪水演進(jìn)進(jìn)行了仿真模擬,實(shí)現(xiàn)了洪水演進(jìn)的動(dòng)態(tài)可視化,開發(fā)了高填方渠道潰堤洪水演進(jìn)情景仿真分析系統(tǒng),為防洪部門提供了有效、直觀的分析手段。本文取得的主要成果如下: (1)建立了高填方渠道潰堤洪水演進(jìn)二維數(shù)學(xué)模型和三維數(shù)學(xué)模型,分別采用有限差分法和有限體積法對控制方程進(jìn)行了離散,并采用潰壩模擬實(shí)驗(yàn)結(jié)果對數(shù)學(xué)計(jì)算模型進(jìn)行了驗(yàn)證。 (2)開發(fā)了高填方渠道潰堤洪水演進(jìn)情景仿真分析系統(tǒng),設(shè)計(jì)了系統(tǒng)的總體框架,基于C#語言開發(fā)了相關(guān)的系統(tǒng)功能模塊,解決了潰口位置交互確定、數(shù)學(xué)計(jì)算模型的程序?qū)崿F(xiàn)等技術(shù)問題,實(shí)現(xiàn)了潰堤洪水演進(jìn)模擬計(jì)算和對計(jì)算結(jié)果的交互查詢的功能。 (3)采用基于生長法的Delaunay三角網(wǎng)生成算法、實(shí)體建模方法、紋理映射技術(shù)等建立了高填方渠道工程三維場景,采用天空盒技術(shù)模擬了場景的環(huán)境,并在此基礎(chǔ)上結(jié)合三維漫游等技術(shù),增強(qiáng)了虛擬場景的交互性與沉浸感,,構(gòu)建了高填方渠道三維虛擬場景,實(shí)現(xiàn)了用戶與虛擬場景的實(shí)時(shí)交互,為工程管理人員提供的直觀管理分析平臺(tái)。 (4)以某長距離調(diào)水工程高填方渠道作為工程實(shí)例,設(shè)計(jì)了系統(tǒng)的總體結(jié)構(gòu)、開發(fā)原則、運(yùn)行環(huán)境以及工作架構(gòu)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.
【學(xué)位授予單位】:天津大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TV122.4

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