| 旋转流场中的格子波耳兹曼模型 |
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| 引用本文： | 冯士德,赵颖,茑原道久,季仲贞.旋转流场中的格子波耳兹曼模型[J].地球物理学报,2002,45(2):170-175. |
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| 作者姓名： | 冯士德 赵颖 茑原道久 季仲贞 |
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| 作者单位： | 1. 中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京100029;
2. 南京理工大学机械工程学院,南京210094;
3. 神户大学自然科学研究所,神户市657-8501,日本 |
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| 基金项目： | 国家重点基础研究发展项目 (KZCX2 2 0 3)，国家重点实验室基金 ( 4 982 30 0 2 ,7 2 0 0 0 5 3,4 2 0 0 0 6 0 ) |
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| 摘 要： | 在大尺度的旋转流场中,由于存在哥氏力,使流体的流动出现了一系列复杂的动力学现象.在原格子Boltzmann模型研究的基础上,引入了哥氏力效应,发展了一个旋转流场中的格子Boltzmann模型.从该模型出发可导出地球流体力学方程,用这一模型对理想边界条件下的北半球大气环流进行了数值计算.数值结果很好地再现了大尺度地转流的流动特征.从理论和数值实验上验证了该模型的适用性.
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| 关 键 词： | 波耳兹曼方程 哥氏力效应 地球流体力学方程. |
| 文章编号： | 0001-5733(2002)02-0170-06 |
| 收稿时间： | 2001-04-09 |
LATTICE BOLTZMANN MODEL IN ROTATIONAL FLOW FIELD |
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| FENG SHI DE , ZHAO YING TSUTAHARA MICHIHISA JI ZHONG ZHEN State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid \ Dynamics.LATTICE BOLTZMANN MODEL IN ROTATIONAL FLOW FIELD[J].Chinese Journal of Geophysics,2002,45(2):170-175. |
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| Authors: | FENG SHI DE ZHAO YING TSUTAHARA MICHIHISA JI ZHONG ZHEN State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid \ Dynamics |
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| Institution: | 1. State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;
2. School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China;
3. Graduate School of Technology and Science, Kobe University, Kobe 657 - 8501, Japan |
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| Abstract: | In large scale rotational flow field,there appear a series of complex dynamic phenomena due to the Coriolis force effect. Based on previous works,the lattice Boltzmann equation model in rotational flow field is developed by introducing the Coriolis force. Geophysics hydrodynamic equations can be derived from this model. Numerical computation is to simulate on the atmospheric circulation of the Northern Hemisphere with this model under ideal boundary conditions. The numerical results show the flow behavior of large scale geostrophic current,thus verifying the applicability of the model in theory and experiment. |
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| Keywords: | Boltzmann equation Coriolis force Geophysical hydrodynamic equation |
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