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中文摘要：
长江口流域污染物排放较多,受地形和水环境过程影响其运动规律极为复杂。为保护近岸海域水质环境,须在洞悉该区域环境水动力基础上开展污染物运动规律的研究。基于ECOMSED三维数值模型和拉格朗日粒子追踪技术,采用单个粒子以及粒子群模拟追踪了长江口的石洞口、竹园、白龙港三大污水排污口区域污染物质的运动轨迹,重点分析了水体表层、中层、底层污染物的运动特性及其影响范围,在此基础上,对该区域水体的排污设置方式提出了参考建议。
英文摘要：
There are more and more pollutants drained in the basin of Changjiang River and the pollutants movement processes affected by the terrain and water are extremely complex.For the protection of water quality in coastal water environment,the research on pollutants movement needs to be carried out based on the study of the hydrodynamics in these regions.Based on the 3D ECOMSED model and the Lagrangian particle tracking technology,the trajectories of pollutants at the Shidongkou,Zhuyuan,Bailonggang in the Changjiang Estuary were simulated by tracking the movement of single particle and particle swarm these areas.The pollutants movement characteristics and influence scope in the surface,middle and bottom of water were analyzed and some suggestions for the sewage water setup in these areas were provided based on the movement of pollutants.
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