| 无结构网格二维潮流模型的开发及应用 |
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| 引用本文： | 匡翠萍,刘旭,陈思宇,刘曙光.无结构网格二维潮流模型的开发及应用[J].同济大学学报(自然科学版),2011,39(12):1779-1783. |
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| 作者姓名： | 匡翠萍 刘旭 陈思宇 刘曙光 |
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| 作者单位： | 1. 同济大学土木工程学院,上海,200092
2. 同济大学土木工程学院,上海 200092;北卡罗莱纳州立大学土木结构环境工程系,罗利 27606 |
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| 基金项目： | “十一五”国家科技支撑计划（2008BAJ08B14）,国家海洋局项目（2009008-05） |
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| 摘 要： | 基于无结构网格的半隐海洋环流模型——“类UnTrim (unstructured grid version of trim)模型”开发了一个二维潮流数学模型.模型在平面上采用无结构三角网格,并采用二维浅水方程作为控制方程.利用水槽试验对模型的潮流模拟和干湿判别进行了验证,验证结果显示模型是稳定可靠的.将模型用于长江口的水动力过程模拟,并利用实测水文资料对模型进行了率定和验证计算.结果表明,模拟结果与实际情况一致.
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| 关 键 词： | 二维潮流模型 无结构三角网格 长江口 水动力 类UnTrim模型 |
| 收稿时间： | 2010/9/28 0:00:00 |
| 修稿时间： | 2011/10/18 0:00:00 |
Development and Application of a 2D Tidal Flow Model with an Unstructured Mesh |
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| KUANG Cuiping,LIU Xu,CHEN Siyu and LIU Shuguang.Development and Application of a 2D Tidal Flow Model with an Unstructured Mesh[J].Journal of Tongji University(Natural Science),2011,39(12):1779-1783. |
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| Authors: | KUANG Cuiping LIU Xu CHEN Siyu and LIU Shuguang |
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| Institution: | College of Civil Engineering,Tongji University,Shanghai 200092,China;College of Civil Engineering,Tongji University,Shanghai 200092,China;College of Civil Engineering,Tongji University,Shanghai 200092,China;Department of Civil,Construction and Environmental Engineering,North Carolina State University,Raleigh NC 27606,USA;College of Civil Engineering,Tongji University,Shanghai 200092,China |
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| Abstract: | A two dimensional tidal flow numerical model is developed based on models like UnTrim type.The model takes the two dimensional shallow water equations as governing equations and uses unstructured triangular mesh on horizontal plane to enhance the efficiency and accuracy of computation.Then the simulation of tidal flow and the wetting and drying is verified by several channel tests.The results show that the model is effective and stable.Then the model is applied to the simulation of the hydrodynamic process in the Yangtze Estuary,and the model is calibrated and validated through the observed field data.The result shows a good agreement between the simulation and computation. |
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| Keywords: | two dimensional tidal flow numerical model unstructured triangular mesh the Yangtze Estuary hydrodynamic UnTrim type model |
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