【摘要】 针对突发性水污染事故,提出一种适用于河流突发性水污染应急处理的污染扩散模型,采用六点隐式差分格式进行模型数值求解。结合实例,模拟了突发性水污染事故中污染物的时空分布,定量模拟了河流下游不同地点处污染物到达的时间和浓度值,并利用水质标识指数法对污染物浓度进行评价,最后结合GIS(地理信息系统)技术实现了评价结果的实时动态可视化。更多还原

【Abstract】 A pollution diffusion model which suits sudden water pollution emergency treatment of river is proposed.Six-point implicit difference scheme is used for numerical solution of the model.Combining the instance,the spatio-temporal distribution of contaminants in a sudden water pollution accident is simulated,the time and concentration of pollutants in the lower reaches of the river is quantitatively predicted,and the pollutant concentrations using water quality identification index method are evaluated.Finally the real-time dynamic visualization of results combing GIS is visualized.更多还原