| 区域谱元正压大气模式台风移动数值模拟试验 |
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| 引用本文： | 刘喜迎.区域谱元正压大气模式台风移动数值模拟试验[J].计算物理,2011,28(1):35-40. |
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| 作者姓名： | 刘喜迎 |
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| 作者单位： | 解放军理工大学气象学院军事气象系,江苏,南京,211101 |
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| 基金项目： | 国家自然科学基金(40876101); 国家863计划(2010AA012304)资助项目 |
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| 摘 要： | 针对地图投影坐标系下的正压原始方程组,将计算区域按三角形元进行分解,在三角形元内用三角形截断的勒让德多项式的积为插值函数对变量进行谱分解,发展出区域正压谱元大气模式.采用固定边界条件,以2006年5月15日08时500 hPa位势高度和风场为初值,在勒让德多项式最高阶数为3和7这两种情形下开展0601号台风"珍珠"移动...
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| 关 键 词： | 正压原始方程 谱元方法 台风 数值模拟 |
Numerical Simulation of Typhoon Movement with a Regional Spectral Element Barotropic Atmospheric Model |
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| LIU Xiying.Numerical Simulation of Typhoon Movement with a Regional Spectral Element Barotropic Atmospheric Model[J].Chinese Journal of Computational Physics,2011,28(1):35-40. |
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| Authors: | LIU Xiying |
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| Institution: | LIU Xiying(Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101,China) |
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| Abstract: | Sharing advantages of spectral method and finite element method,a spectral element method is used in numerical study of geophysical fluid dynamics.By solving barotropic primitive equations with spectral element method,a regional barotropic atmospheric model is developed.In the model,computational domain is broken into a series of triangular elements,and variables in each element are represented as a high order Lagrangian interpolant with products of Legendre polynomials with triangular truncation.With geopo... |
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| Keywords: | barotropic primitive equation spectral element method typhoon numerical simulation |
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