| 基于非恒定流的污染物迁移扩散随机模拟 |
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| 引用本文： | 冯民权,范世平,杨建明,郑邦民.基于非恒定流的污染物迁移扩散随机模拟[J].自然灾害学报,2011(5). |
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| 作者姓名： | 冯民权 范世平 杨建明 郑邦民 |
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| 作者单位： | 西安理工大学西北水资源与环境生态教育部重点实验室;山西省柏叶口水库建设管理局;武汉大学水利水电学院; |
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| 基金项目： | 山西省科技攻关项目(20110313027) |
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| 摘 要： | 针对目前大部分河流都受到不同程度污染的现状,研究了基于非恒定流的污染物迁移扩散随机模拟方法。通过一维非恒定流数值计算和流场模拟,得到了水库开闸放水后下游各个断面的水位、流量、流速等数据,并以此为基础,利用蒙特卡洛法对水库开闸放水前后下游典型断面的COD和NH3-N等进行污染物迁移扩散随机模拟,并将模型应用于文峪河下游。结果表明,文峪河水库开闸放水后,COD和NH3-N的污染带长度和宽度均有不同程度的减小,污染带向排污一侧岸边集中。研究成果可为解决河流污染现状与水库调度提供参考。
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| 关 键 词： | 非恒定流 迁移扩散 文峪河 |
Random simulation of migratory diffusion of pollutants based on unsteady flow condition |
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| FENG Min-quan,FAN Shi-ping,YANG Jian-ming,ZHENG Bang-min.Random simulation of migratory diffusion of pollutants based on unsteady flow condition[J].Journal of Natural Disasters,2011(5). |
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| Authors: | FENG Min-quan FAN Shi-ping YANG Jian-ming ZHENG Bang-min |
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| Institution: | FENG Min-quan1,FAN Shi-ping1,2,YANG Jian-ming2,ZHENG Bang-min3 (1.Key Laboratory of Northwest Water Resources and Environmental Ecology of Ministry of Education,Xi'an University of Technology,Xi'an 710048,China,2.Construction and Administration Bureau of Baiyekou Reservoir,Taiyuan 030002,3.School of Water Resource and Hydropower,Wuhan University,Wuhan 430072,China) |
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| Abstract: | Based on the condition that most rivers are polluted in different degree at present,the author studied the method of random simulation of migratory diffusion of pollutants with unsteady flow theory in the paper.Through numerical calculation of one-dimenlsional unsteady flow field simulation,the data of water level,flow rate and velocity in typical sections of downstream was obtained for the case in which the reservoir gate was opened.Based on this,the diffusion of pollutants COD and NH3-N in typical section... |
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| Keywords: | unsteady flow migratory diffusion Wenyu River |
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