| 黄河三角洲海域的潮汐流动数值模拟 |
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| 引用本文： | 张宏伟,袁仲杰.黄河三角洲海域的潮汐流动数值模拟[J].水道港口,2011,32(1):12-17. |
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| 作者姓名： | 张宏伟 袁仲杰 |
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| 作者单位： | 1. 大连花园口经济区规划建设局,大连,116023
2. 国家海洋环境监测中心,大连,116023 |
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| 摘 要： | 文章将一种有效处理浅水流动计算中的Roe型二阶精度迎风型FVM格式应用到平面二维浅水流动数学模型中.为保证Roe格式的稳定性,应用Ropers格式以解决通量梯度项与源项的平衡问题.为避免源项引起的计算不稳定,对源项采用分步法及半隐式求解.在此基础上,应用该模型对地形复杂的黄河三角洲海域潮汐进行了实际数值模拟.并对其水动...
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| 关 键 词： | Roe迎风离散格式 有限体积法 黄河三角洲 |
Numerical modeling of the Yellow River delta sea field tidal flow |
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| ZHANG Hong-wei,YUAN Zhong-jie.Numerical modeling of the Yellow River delta sea field tidal flow[J].Journal of Waterway and Harbour,2011,32(1):12-17. |
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| Authors: | ZHANG Hong-wei YUAN Zhong-jie |
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| Institution: | ZHANG Hong-wei1,YUAN Zhong-jie2(1.Dalian Huayuankou Economic Zone Planning and Construction Bureau,Dalian 116023,China,2.National Marine Environmental Monitoring Center,China) |
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| Abstract: | An unstructured triangle numerical algorithm of Roe′s second-order upwind was proposed for solving the 2D tidal flow of the Yellow River delta sea field.The Ropers method was applied to deal with the term of bed slope source in the equation,so that the flux could be balanced.The method of step by step was used to calculate the friction source terms and enhance the stability of calculation.The mathematical model was successfully applied into the Yellow River delta waters which had the complex condition of submarine topography,and had carried on the detailed analysis to its hydrodynamic characteristics.The results show that this method can be well used in the tidal numerical simulation which has the complex coastline as well as submarine topography. |
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| Keywords: | Roe′s upwind scheme finite volume method the Yellow River delta |
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