本文選題：水動力 + 數(shù)值模擬　； 參考：《哈爾濱工程大學(xué)》2014年碩士論文

【摘要】：隨著計算機(jī)技術(shù)和流體數(shù)值模擬的技術(shù)的不斷發(fā)展進(jìn)步,越來越多的水利規(guī)劃設(shè)計應(yīng)用到模型模擬技術(shù)進(jìn)行設(shè)計參數(shù)的篩選和驗證。研究基于青龍蓮花河河道水利規(guī)劃設(shè)計要素,建立適用于該區(qū)域的工程改造后的水動力學(xué)數(shù)值模型,借助數(shù)值模擬的技術(shù)分析該工程實施后各種極端的水文條件下河道的排洪情況,為日后工程的運行管理提供技術(shù)基礎(chǔ)。根據(jù)河道的防洪和洪水波傳播的不同特點,使用一維和二維數(shù)值模擬的流體動力學(xué)方程,建立洪水演進(jìn)數(shù)值模型,分析了河道設(shè)計規(guī)劃中各種頻率來水工況下的泄流能力。本文完成主要工作包括:(1)應(yīng)用丹麥水利研究院(DHI)開發(fā)的MIKE11模型,建立青龍蓮花河改造工程實施后的河道一維水動力學(xué)模型。整個河道改造工程涉及61個改造斷面、5條支流入口及4條引水支渠。數(shù)值模擬的邊界條件選擇洪水頻率包含P=1%、P=2%、P=5%和P=10%多種情況。(2)應(yīng)用丹麥水利研究院(DHI)開發(fā)的MIKE21模型,構(gòu)建在極端洪水情況下青龍蓮花河部分河段發(fā)生漫堤時,該區(qū)域的泛洪區(qū)的平面二維洪水淹沒過程的數(shù)值模擬模型。研究采用MIKE FLOOD模塊,以一維二維模型動態(tài)耦合的方式進(jìn)行模擬。在該模式下平面二維模型的邊界將由MIKE FLOOD模塊自動賦予,一維河道洪水溢出量將動態(tài)賦予到二維模型的指定邊界中。該研究得到參數(shù)結(jié)果與青龍蓮花河水利規(guī)劃設(shè)計資料的參數(shù)基本吻合。同時驗證該改造工程后青龍蓮花河能夠抵御10年一遇的洪水,得出該改造工程中部分?jǐn)嗝娴陌兜绦枰庸碳痈叩慕Y(jié)論。對于洪水漫堤時發(fā)生的淹沒分析,本次研究應(yīng)用一維二維模型動態(tài)耦合的方式進(jìn)行模擬,提高了計算的效率,比較適合洪水淹沒分析。
[Abstract]:With the development of computer technology and fluid numerical simulation, more and more water resources planning and design are applied to model simulation to screen and verify the design parameters. Based on the elements of water conservancy planning and design of the Lianhua River in Azure Dragon, a hydrodynamic numerical model suitable for engineering reconstruction in this area is established. With the help of numerical simulation technology, the flood discharge situation of the river under various extreme hydrological conditions after the implementation of the project is analyzed, which provides a technical basis for the operation and management of the project in the future. According to the different characteristics of flood control and flood wave propagation, a numerical model of flood routing is established by using the hydrodynamic equations of one-dimensional and two-dimensional numerical simulation, and the discharge capacity under various frequency conditions in river design planning is analyzed. The main work accomplished in this paper includes the application of MIKE11 model developed by the Danish Water Conservancy Research Institute (DHI) and the establishment of a one-dimensional hydrodynamic model of the river course after the implementation of the Azure Dragon Lianhua River Reconstruction Project. The whole river course reconstruction project involves 61 sections with 5 tributaries and 4 branch canals. The selected flood frequency of the numerical simulation boundary condition includes five percent and ten percent of the water resources. MiKE21 model developed by the Danish Water Conservancy Research Institute is used to construct the embankment of part of the Lianhua River in Azure Dragon under extreme flood conditions. The numerical simulation model of the planar two-dimensional flood process in the flooding area of this region. In this paper, the mime FLOOD module is used to simulate the dynamic coupling of one-dimensional and two-dimensional model. In this model, the boundary of the two-dimensional model will be automatically assigned by the Mike FLOOD module, and the flood overflow volume of the one-dimensional channel will be dynamically assigned to the specified boundary of the two-dimensional model. The results of this study are in good agreement with the data of water conservancy planning and design in Azure Dragon Lianhua River. At the same time, it is verified that the Azure Dragon Lianhua River can withstand the flood once in 10 years, and it is concluded that the bank embankment of some sections of the reconstruction project needs to be strengthened and raised. For the flood analysis of overflowing embankment, the method of dynamic coupling of one-dimensional and two-dimensional model is used in this study, which improves the efficiency of calculation and is more suitable for flood analysis.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TV122

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 魏文禮;郭永濤;;基于加權(quán)本質(zhì)無振蕩格式的二維潰壩水流數(shù)值模擬[J];水利學(xué)報;2007年05期

2 饒群,芮孝芳,徐炎華,張宇鋒,張雪英;水體葉綠素二維生態(tài)動力學(xué)模型研究[J];水科學(xué)進(jìn)展;2003年06期

3 魏文禮,沈永明,孫廣才,劉玉玲;二維潰壩洪水波演進(jìn)的數(shù)值模擬[J];水利學(xué)報;2003年09期

4 吳修廣,沈永明,鄭永紅,王平義;非正交曲線坐標(biāo)下二維水流計算的SIMPLEC算法[J];水利學(xué)報;2003年02期

5 夏云峰;非交錯曲線網(wǎng)格的水流數(shù)值計算模型[J];水利水運工程學(xué)報;2001年01期

6 童漢毅,趙明登,槐文信,王京qG;洪潮遭遇情況的水動力學(xué)計算[J];武漢水利電力大學(xué)學(xué)報;2000年05期

7 方春明;全隱式差分法求解河道平面二維恒定水流運動方程[J];水利學(xué)報;1997年04期

8 譚維炎,胡四一,王銀堂,徐承隆,仲志余,胡維忠;長江中游洞庭湖防洪系統(tǒng)水流模擬——Ⅰ．建模思路和基本算法[J];水科學(xué)進(jìn)展;1996年04期

9 胡四一,王銀堂,譚維炎,仲志余,徐承隆,胡維忠;長江中游洞庭湖防洪系統(tǒng)水流模擬——Ⅱ．模型實現(xiàn)和率定檢驗[J];水科學(xué)進(jìn)展;1996年04期

10 周孝德，陳惠君，沈晉;滯洪區(qū)二維洪水演進(jìn)及洪災(zāi)風(fēng)險分析[J];西安理工大學(xué)學(xué)報;1996年03期

相關(guān)博士學(xué)位論文 前1條

1 耿艷芬;城市雨洪的水動力耦合模型研究[D];大連理工大學(xué);2006年

相關(guān)碩士學(xué)位論文 前2條

1 王領(lǐng)元;應(yīng)用MIKE對河流一、二維的數(shù)值模擬[D];大連理工大學(xué);2007年

2 耿艷芬;河網(wǎng)水沙的數(shù)值模擬[D];大連理工大學(xué);2003年

，

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