| 基于DLCA模型的絮凝过程模拟与应用 |
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| 引用本文： | 郑典模,朱升干,蒋文天,戴健. 基于DLCA模型的絮凝过程模拟与应用[J]. 南昌大学学报(工科版), 2011, 33(2): 129-133,140 |
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| 作者姓名： | 郑典模 朱升干 蒋文天 戴健 |
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| 作者单位： | 南昌大学环境与化学工程学院,江西南昌,330031 |
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| 摘 要： | 在二维有限扩散集团凝聚（DLCA）模型基础上,利用Matlab软件建立DLCA模型,模拟絮凝体的生长过程。模拟结果表明：簇团数目与单个粒子数目随着循环步数增加而减小,盒子法计算模拟絮体获得的分形维数在1.341～1.551之间。屏蔽效应的存在使絮体呈现内部致密、外部疏松且高度多孔结构,模拟过程体现了分形的特征。实验采用聚合氯化铝絮凝剂处理模拟洗煤废水,盒子法计算真实絮体获得的分形维数在1.378～1.520之间,且随废水浓度增加而减少,与模拟结果相似性较高。
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| 关 键 词： | 二维有限扩散集团凝聚模型 絮体 Matlab平台 洗煤废水 |
Simulation on Flocculation Process Based on DLCA Model and Its Application |
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| ZHENG Dian-mo,ZHU Sheng-gan,JIANG Wen-tian,DAI Jiang. Simulation on Flocculation Process Based on DLCA Model and Its Application[J]. Journal of Nanchang University(Engineering & Technology Edition), 2011, 33(2): 129-133,140 |
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| Authors: | ZHENG Dian-mo ZHU Sheng-gan JIANG Wen-tian DAI Jiang |
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| Affiliation: | ZHENG Dian-mo,ZHU Sheng-gan,JIANG Wen-tian,DAI Jiang(School of Environmental and Chemical Engineering,Nanchang University,Nanchang 330031,China) |
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| Abstract: | Matlab software was used to simulate the aggregation process of flocs based on the two-dimensional square lattices diffusion-limited cluster-cluster aggregation(2D-DLCA) model.Simulation results showed that particle and clusters numbers were decreased with the growing of cycle numbers,and fractal dimensions were calculated using box-counting method with ranging from 1.341 to 1.551.Due to the shielding effect of the particles,simulation flocs have higher porous structure with inner-tenuous and external-loose... |
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| Keywords: | 2D-diffusion-limited cluster aggregation model flocs Matlab platform coal washing wastewater |
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