| 潮汐河段挡沙堤平面形态对水流影响数值模拟研究 |
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| 引用本文： | 窦峰,张玮,陈恺,余珍.潮汐河段挡沙堤平面形态对水流影响数值模拟研究[J].水道港口,2011,32(1):33-37. |
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| 作者姓名： | 窦峰 张玮 陈恺 余珍 |
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| 作者单位： | 河海大学港口海岸与近海工程学院,南京,210098 |
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| 摘 要： | 以海门新江海河挖入式港池挡沙堤工程为研究对象,采用有限体积方法,建立了三角形非结构网格二维潮流数学模型,分析了不同挡沙堤形态对堤头流场、横流和水位变化影响特性.研究结果表明,随着堤长增大,其挑流作用不断增强.应合理控制堤长.堤头形态变化可以起到优化流场、减缓横流的作用.工程区水位变化最明显为涨落急时刻,最明显区域为堤身...
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| 关 键 词： | 潮汐河段 挡沙堤 数值计算 |
Numerical simulation on influence of different planes of sand dyke on water flow in tidal river |
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| DOU Feng,ZHANG Wei,CHEN Kai,YU Zhen.Numerical simulation on influence of different planes of sand dyke on water flow in tidal river[J].Journal of Waterway and Harbour,2011,32(1):33-37. |
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| Authors: | DOU Feng ZHANG Wei CHEN Kai YU Zhen |
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| Institution: | DOU Feng,ZHANG Wei,CHEN Kai,YU Zhen(College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | Taking the sand dyke projects of the dig-in basin of Xinjianghai river in Haimen as an example,the 2-D tidal current numerical model of unstructured triangular grids was established to analyze the characteristics of flow field,cross flow and water level variation at the head of the dyke under different planes of the dykes based on finite volume method.The results show that the deflecting flow is more obvious with the increase of dyke length,therefore,the dyke length should be controlled reasonably.Dyke head... |
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| Keywords: | tidal river sand dyke numerical calculation |
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