| 非静力模式中三维网格的计算特性 |
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| 引用本文： | 刘宇迪.非静力模式中三维网格的计算特性[J].计算物理,2004,21(2):149-155. |
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| 作者姓名： | 刘宇迪 |
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| 作者单位： | 1. 中国科学院大气物理研究所LASG, 北京 100029;2. 解放军理工大学气象学院, 江苏 南京 211101 |
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| 基金项目： | 中国科学院大气物理研究所LASG开放课题资助项目 |
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| 摘 要： | 在线性斜压非静力滞弹性方程组的基础上,从频率和群速方面讨论了10种三维网格的计算频散性,结果表明三维网格EL/CP、C/CP与Z/LZ计算频散性能较好.从而为非静力原始方程大气模式选取三维网格提供指导.
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| 关 键 词： | 非静力模式 三维网格 频率 群速 |
| 文章编号： | 1001-246X(2004)02-0149-07 |
| 收稿时间： | 2002-10-09 |
| 修稿时间： | 2002年10月9日 |
Numerical Properties of 3D Grids in a Nonhydrostatic Model |
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| LIU Yu-di.Numerical Properties of 3D Grids in a Nonhydrostatic Model[J].Chinese Journal of Computational Physics,2004,21(2):149-155. |
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| Authors: | LIU Yu-di |
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| Institution: | 1. State Key Laboratory Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, China Academy Sciences, Beijing 100029, China;2. Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China |
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| Abstract: | In the framework of linear baroclinic nonhydrostatic anelastic equations,calculation is undertaken for dispersions of inertia gravitational waves in different kinds of 3D(three-dimensional) grids from the perspective of frequency and group velocity, indicating that such 3D structures as EL/CP, C/CP and Z/LZ are superior to others in the computational dispersion properties, thereby providing a guidance to the selection of 3D grids applicable to atmospheric primitive equation nonhydrostatic models. |
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| Keywords: | nonhydrostatic model 3D grids frequency group velocity |
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