| DLA集团形貌演化的计算机模拟 |
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| 引用本文： | 刘振华,张建华,屈世显. DLA集团形貌演化的计算机模拟[J]. 西安石油大学学报(自然科学版), 1993, 0(3) |
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| 作者姓名： | 刘振华 张建华 屈世显 |
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| 作者单位： | 西安石油学院石油机械系，西安石油学院基础课部，西安石油学院基础课部 |
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| 摘 要： | 在二维正方网格上,利用与传纯扩散有限凝聚 DLA 方法不同的分形生长模型,研究了具有不同扩散半径的拉子无规行走凝聚过程.计算机模拟结果表明,随着拉子扩散半径的增加,分形集团在二维正方网格上按如下系列“无序分形→枝状结构→类十字结构→十字结构”的形貌演化.与去噪声 DLA 模型相比,本文所述模型能够更为方便的得到各向同性或各向异性的分形生长集团
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| 关 键 词： | 分形生长 分形集团 计算机模拟 形貌演化 |
Computer Simulation for thd Morphological Evolution of DLA Clusters |
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| Liu Zhenghua. Computer Simulation for thd Morphological Evolution of DLA Clusters[J]. Journal of Xian Shiyou University, 1993, 0(3) |
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| Authors: | Liu Zhenghua |
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| Affiliation: | Liu Zhenghua (Dept.of Petroleum Mechanical Engineering)Zhang Jianhua Qu Shixian (Dept.of Basic Courses) |
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| Abstract: | On two—dimension square lattice,the aggregation of randomly walking particles with various diffusing radii were simulated by an algorithm which is somewhat different from the ordinary DLA model.It is shown that the morphological changes of the aggregates took place in the sequence—“random fractal→dendritic structure→ crosslike structure→cross structure”on two—dimension square lattice with the increase of the diffusing radius.Compared with noise—reduced model DLA,our simulation are more convenient to obtain the fractal growing aggregates with both the isotropic and anisotropic structure. |
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| Keywords: | fractal growth fractal clusters computer simulation morphological evolution |
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