基于TVD隐格式的二维水动力学模型在蓄滞洪区洪水淹没模拟中的应用研究
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摘要
蓄滞洪区淹没涉及大量的人员和财产损失。为更科学、有效地利用蓄滞洪区,降低灾害损失,需要模拟计算不同进洪方式下的淹没情况,为此建立了基于TVD隐格式的黄墩湖蓄滞洪区二维水动力学模型,完成了4种组合进洪方式下的洪水演进模拟。结果表明,该方法可有效计算蓄滞洪区洪水演进过程,进而分析淹没水深、淹没区域以及骆马湖水位的变化过程。将洪水淹没模拟结果辅以蓄滞洪区的人口、经济分布,可有效计算不同进洪方式下的人民经济财产损失,进而为制定科学合理的进洪方式和应急预案提供可靠的数据支持。
The submergence of flood storage and detention area will result in a large loss of lives and property. In order to make more scientific and effective use of flood storage and detention area and reduce losses, it is necessary to simulate and calculate the submergence under different flood inflow modes. Based on the two-dimensional hydrodynamic model of flood storage and detention area of Huangdun Lake in TVD implicit format, this study has completed the simulation of flood evolution under four combined inflow modes. The results show that this method can effectively calculate the flood evolution process of flood storage and detention area, and then analyze the variation process of submerged water depth, submerged area and Luoma Lake water level. By studying the simulation results of flood submergence and the population and economic distribution of flood storage and detention areas, the economic and property losses caused by different flood inflow modes can be effectively calculated, so as to provide reliable data support for formulating scientific and reasonable flood inflow modes and emergency plans.
The submergence of flood storage and detention area will result in a large loss of lives and property. In order to make more scientific and effective use of flood storage and detention area and reduce losses, it is necessary to simulate and calculate the submergence under different flood inflow modes. Based on the two-dimensional hydrodynamic model of flood storage and detention area of Huangdun Lake in TVD implicit format, this study has completed the simulation of flood evolution under four combined inflow modes. The results show that this method can effectively calculate the flood evolution process of flood storage and detention area, and then analyze the variation process of submerged water depth, submerged area and Luoma Lake water level. By studying the simulation results of flood submergence and the population and economic distribution of flood storage and detention areas, the economic and property losses caused by different flood inflow modes can be effectively calculated, so as to provide reliable data support for formulating scientific and reasonable flood inflow modes and emergency plans.
引文
[1] 肖潇,麻林,庞爱磊.童家湖蓄滞洪区洪水演进数值模型研究[J].人民长江,2018,49(7):6-10.
[2] 王越,刘曙光.基于ArcGIS的平原河网地区圩区内涝模拟方法研究[J].华北水利水电大学学报(自然科学版),2018,39(1):81-85.
[3] 李春辉,徐国宾,苑希民,等.河道与蓄滞洪区联合防洪数值模拟研究进展[J].水资源与水工程学报,2017,28(6):139-144.
[4] 李大鸣,管永宽,李玲玲,等.蓄滞洪区洪水演进数学模型研究及应用[J].水利水运工程学报,2011(3):27-35.
[5] 果鹏,夏军强,陈倩,等.基于力学过程的蓄滞洪区洪水风险评估模型及应用[J].水科学进展,2017,28(6):858-867.
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[8] 宋利祥,周建中,王光谦,等.溃坝水流数值计算的非结构有效体积模型[J].水科学进展,2011,22(3):73-81.
[9] 高学平,郭磊,李兰秀.蓄滞洪区蓄水优化研究[J].干旱区资源与环境,2006,20(5):46-50.
[10] 金卫斌,李猷,付刚,等.基于GIS的洪湖分蓄洪区东分块洪水淹没损失的估算及分析[J].长江大学学报(自然版):农学卷,2006,3(4):237-240.
[11] 熊继斌,刘明明,马兆会,等.蓄滞洪区内洪水演进数学模型的应用[J].水利规划与设计,2016(12):131-134.
[2] 王越,刘曙光.基于ArcGIS的平原河网地区圩区内涝模拟方法研究[J].华北水利水电大学学报(自然科学版),2018,39(1):81-85.
[3] 李春辉,徐国宾,苑希民,等.河道与蓄滞洪区联合防洪数值模拟研究进展[J].水资源与水工程学报,2017,28(6):139-144.
[4] 李大鸣,管永宽,李玲玲,等.蓄滞洪区洪水演进数学模型研究及应用[J].水利水运工程学报,2011(3):27-35.
[5] 果鹏,夏军强,陈倩,等.基于力学过程的蓄滞洪区洪水风险评估模型及应用[J].水科学进展,2017,28(6):858-867.
[6] 向小华.基于隐式TVD格式的一、二维耦合流域河网模型研究[D].南京:河海大学,2009:64-68.
[7] 回达,王双强,张桂勇,等.非结构网格下基于梯度光滑法的改进TVD格式[J].浙江大学学报(工学版),2017,51(5):1032-1043.
[8] 宋利祥,周建中,王光谦,等.溃坝水流数值计算的非结构有效体积模型[J].水科学进展,2011,22(3):73-81.
[9] 高学平,郭磊,李兰秀.蓄滞洪区蓄水优化研究[J].干旱区资源与环境,2006,20(5):46-50.
[10] 金卫斌,李猷,付刚,等.基于GIS的洪湖分蓄洪区东分块洪水淹没损失的估算及分析[J].长江大学学报(自然版):农学卷,2006,3(4):237-240.
[11] 熊继斌,刘明明,马兆会,等.蓄滞洪区内洪水演进数学模型的应用[J].水利规划与设计,2016(12):131-134.