| 溃坝洪水演进数值模拟研究 |
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| 引用本文： | 戎贵文,魏文礼,严建军.溃坝洪水演进数值模拟研究[J].黑龙江水专学报,2008,35(3):12-14. |
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| 作者姓名： | 戎贵文 魏文礼 严建军 |
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| 作者单位： | 1. 西安理工大学,水利水电学院,西安,710048
2. 西安普迈项目管理有限公司,西安,710068 |
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| 摘 要： | 采用基于MacCormack预测——校正技术的隐式数值格式求解控制水流运动的二维浅水方程,建立了模拟大坝瞬间全溃或局部溃倒所致的洪水演进过程的数学模型。应用该模型对单宽一维瞬间溃坝的水位、流速进行了数值计算,并与理论解进行了比较;最后用该模型预测了矩形河道中大坝瞬间局部溃倒时的洪水演进过程,并对模拟结果进行了定性分析。算例说明该数学模型对模拟溃坝洪水波很有效。
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| 关 键 词： | 溃坝洪水波 数值模拟 隐式格式 |
Numerical Simulation of 2D Dam-break Flood Waves |
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| RONG Gui-wen,WEI Wen-li,YAN Jian-jun.Numerical Simulation of 2D Dam-break Flood Waves[J].Journal of Heilongjiang Hydraulic Engineering College,2008,35(3):12-14. |
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| Authors: | RONG Gui-wen WEI Wen-li YAN Jian-jun |
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| Affiliation: | RONG Gui-wen1,WEI Wen-li1,YAN Jian-jun2(1.College of Water Conservency , Hydopower Engineering,Xi\'an University of Technology,Xi\'an 710048,China,2.Xi\'an Pumai Project Management Co.Ltd.,Xi\'an 710068,China) |
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| Abstract: | This paper is concerned with a mathematical model for numerical simulation of 2D flood waves due to complete or partial dam-break.The governing equations are solved by using an implicit bidiagonal numerical scheme,based on the MacCormack's predictor-corrector technique.The mathematical model is used to numerically compute the water surface profiles and velocity distributions of 1D dam-break flow in a rectangular open channel;and the numerical results are compared with the theoretical results.And it is also ... |
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| Keywords: | dam-break flood waves numerical simulation implicit scheme |
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