| 无网格方法中粒子分布与自适应研究 |
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| 引用本文： | 倪国喜,王瑞利,林忠.无网格方法中粒子分布与自适应研究[J].计算物理,2006,23(4):419-424. |
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| 作者姓名： | 倪国喜 王瑞利 林忠 |
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| 作者单位： | 北京应用物理与计算数学研究所,计算物理实验室,北京,100088 |
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| 基金项目： | 中国物理研究院科研项目;中物院42105基金 |
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| 摘 要： | 给出了一种区域粒子的Voronoi面积均匀的划分方法，先利用边界点得到边界粒子，再得到内部粒子，利用这种方法可以得到一般区域上粒子的均匀分布．同时，给出了计算过程中按流场的物理量对粒子进行自适应分布的方法．并给出了几个算例．
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| 关 键 词： | Voronoi面积 均匀分布 粒子分布 自适应 |
| 文章编号： | 1001-246X（2006）04-0419-06 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005-08-31 |
Adaptive Distribution of Particles in a Meshfree Method |
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| NI Guo-xi,WANG Rui-li,LIN Zhong.Adaptive Distribution of Particles in a Meshfree Method[J].Chinese Journal of Computational Physics,2006,23(4):419-424. |
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| Authors: | NI Guo-xi WANG Rui-li LIN Zhong |
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| Institution: | Institute of Applied Physics and Computational Mathematics, Bering 100088, China |
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| Abstract: | A new method to generate a quasi-equal distribution of particles on arbitrary domains is provided. Based on an advancing front mesh generation method, triangles are formed at the boundary. These triangle center-points are used for the boundary condition of the Delaunay mesh generation method which generates inward triangles. All vertices of triangles are the particles in meshfree methods. An adaptive method is given to readjust distribution of particles, according to the gradient of fluid density. |
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| Keywords: | Voronoi area boundary point partical distribution adaptive |
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