| 广义曲线网格下的缓坡方程数值模型的建立及验证 |
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| 引用本文： | 冯芒,沙文钰,朱首贤.广义曲线网格下的缓坡方程数值模型的建立及验证[J].热带海洋学报,2004,23(3):50-57. |
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| 作者姓名： | 冯芒 沙文钰 朱首贤 |
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| 作者单位： | 解放军理工大学气象学院军事海洋系,江苏,南京,211101 |
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| 基金项目： | 中国人民解放军总装备部重点项目(40701010401) |
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| 摘 要： | 采用一个综合考虑地形、背景流、摩擦耗散的Ebersole型缓坡方程，变换为广义曲线坐标形式，建立了相应的计算模型。利用双曲地形波浪传播进行验证，设计了长江口深水航道区域与地形相符的曲线网格，并作了该地区波浪的计算检验。结果表明，该模型不仅大大减少了计算量，更增加了计算的稳定度，是一个实用的计算模型。
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| 关 键 词： | 缓坡方程 折射-绕射 广义曲线坐标系 |
| 文章编号： | 1009-5470(2004)03-0050-08 |
| 修稿时间： | 2003年3月22日 |
VALIDATION AND APPLICATION ABOUT A NUMERICAL MODEL OF MILD-SLOPE EQUATIONS UNDER A GENERALIZED CURVILINEAR GRID |
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| FENG Mang,SHA Wen-yu, ZHU Shou-xian.VALIDATION AND APPLICATION ABOUT A NUMERICAL MODEL OF MILD-SLOPE EQUATIONS UNDER A GENERALIZED CURVILINEAR GRID[J].Journal of Tropical Oceanography,2004,23(3):50-57. |
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| Authors: | FENG Mang SHA Wen-yu ZHU Shou-xian |
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| Abstract: | Ebersole-type equations including refraction-diffraction item and dissipation i-tem are adapted, and a mathematical model based on the equations is established under generalized curvilinear coordinates. The model is proved to be effective under a hyper-bolic terrain. Then a curvilinear grid is designed for the terrain of Changjiang River es-tuary, and the model is validated by calculating wave height in this area. The result in-dicates that the model can not only cut down on calculation but also enhance calculation stability. It is an applicable model. |
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| Keywords: | mild-slope equation refraction-diffraction generalized curvilinear coordi-nates |
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