| 格子Boltzmann方法及其在泥石流堆积研究中的应用 |
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| 引用本文： | 王沁,姚令侃.格子Boltzmann方法及其在泥石流堆积研究中的应用[J].灾害学,2007,22(3):1-5. |
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| 作者姓名： | 王沁 姚令侃 |
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| 作者单位： | 1. 西南交通大学,土木工程学院,四川,成都,610031;西南交通大学,数学系,四川,成都,610031
2. 西南交通大学,土木工程学院,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 以格子Boltzmann方法为平台,结合泥石流流团模型的特点,建立了特殊的格子Boltzmann模型。该模型从平衡态分布函数和非平衡态分布函数两个层次精细刻画了泥石流运动的非线性特征及其复杂的流变关系,成功模拟了泥石流的堆积过程,研究了地面形态与泥石流堆积形态之间的关系。
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| 关 键 词： | 格子Boltzmann方法 泥石流 二维流团模型 非平衡态分布函数 堆积形态 地面形态 |
| 文章编号： | 1000-811X（2007）03-0001-05 |
| 修稿时间： | 2007-01-30 |
Lattice Boltzmann Method and Its Application in the Study on Deposition of Debris Flow |
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| Wang Qin,Yao Lingkan.Lattice Boltzmann Method and Its Application in the Study on Deposition of Debris Flow[J].Journal of Catastrophology,2007,22(3):1-5. |
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| Authors: | Wang Qin Yao Lingkan |
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| Institution: | Collage of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; Department of Applied Mathematics, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | The lattice Boltzmann method is used as the platform.Based on the Particle model of the debris flow's deposition,the lattice Boltzmann model is set up.The model depicts the nonlinear character during depositing and the complexity of fluid rheology of debris flow by using the equilibrium distribution functions and non-equilibrium distribution functions.The deposition of debris flow is successfully simulated by the lattice Boltzmann model and the relation of the landform and the deposition of debris flow is analyzed. |
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| Keywords: | Lattice Boltzmann method debris flow particle model equilibrium distribution function non-equilibrium distribution function deposition of debris flow landform |
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