摘要
为研究长江内河突发性溢油事故油膜运动扩散规律,利用MIKE21软件建立了长江宜昌江段平面二维溢油数学模型,模拟了该江段不同水文条件、不同溢油总量条件下的溢油事故的影响范围和程度。模拟结果显示:丰水期和枯水期油膜运动扩散规律不同,油膜厚度、飘移范围和持续时间有显著差异;对于狭长型河道,溢油量对油膜厚度影响较大,而对油膜飘移范围影响较小。该结论可为内河溢油事故应急处理和内河溢油事故数值模拟深入研究提供参考依据。
A two-dimensional oil spill mathematical model for Yichang section of Yangtze River was established by MIKE21 software to investigate the diffusion effects of oil pollutant.An oil spill accidents was simulated under different hydrological conditions and amount of spillage.The simulation results show that the thickness,drift range and duration of the oil film have significant differences during high and low water periods.For a long and narrow channel,amount of spillage has a large influence on the thickness of oil film,but small on the drift range.The conclusion can be applied to oil-spill emergency processing and further study on the numerical simu?lation of inland rivers.
作者
胡旭
辛小康
尹炜
陈和春
王继保
李光浩
HU Xu;XIN Xiaokang;YIN Wei;CHEN Hechun;WANG Jibao;Li Guanghao(College of hydraulic and environmental engineering,Three Gorges University,Yichang 443002,China;Changjiang water resources protection institute,Wuhan 430051,China)
出处
《三峡生态环境监测》
2018年第1期53-58,共6页
Ecology and Environmental Monitoring of Three Gorges
基金
国家重点研发计划(2016YFC0402204
2016YFC0402207)
关键词
溢油事故
扩散
数值模拟
宜昌江段
oil spill accident
diffusion
numerical simulation
Yichang section of Yangtze river
