海底管道溢油扩散数值模拟研究  

A Numerical Simulation on the Spilled Oil Diffusion of Submarine Pipelines

作　　者：林默涵 何国玺 李岩松[2] 汤东东 梁永图[2] LIN Mohan;HE Guoxi;LI Yansong;TANG Dongdong;LIANG Yongtu(College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;Beijing Key Laboratory of Urban Oil and Gas Transportation Technology, China University of Petroleum, Beijing 102249, China)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石油大学(北京)城市油气输配技术北京市重点实验室,北京102249

出　　处：《北京石油化工学院学报》2017年第4期83-90,共8页Journal of Beijing Institute of Petrochemical Technology

基　　金：国家自然科学基金项目(51474228);北京市科学研究与研究生培养共建项目(ZX20150440)

摘　　要：海底输油管道受到海水冲击和腐蚀等影响易产生不同程度的损伤,造成油品泄漏。为了研究溢出原油在海水中的运动扩散规律,建立了海底管道溢油扩散的两相流模型,通过计算流体动力学方法计算了溢油在海水中的运动轨迹、扩散范围以及抵达海面的时间等,分析了溢油速度、海水流速、原油密度对溢油扩散范围和时间的影响,确定了不同密度原油到达海面时的最大水平迁移距离和时间,获得了无量纲预测公式。模拟所得结论可为海上溢油事故的应急响应措施提供有效的指导。Submarine pipelines are normally more or less damaged under the influence of rush and corrosion of seawater, which could cause oil spills. Two-phase flow diffusion model of spilled oil is established to study the spilled-oil diffusion in seawater. The trajectory, diffusion area and time of arrival at sea surface of spilled oil are calculated based on the computational fluid dynamics method. The effects of spill velocity, flow rate of seawater and crude oil density on the diffusion area and time of arrival are analyzed. The distance and time of the maximal horizontal migration of crude oil of different density are determined. The fitting formulas are obtained as well. The results offer significant guidance for emergency actions to deal with offshore oil spill accidents.

关 键 词：溢油 扩散 两相流 计算流体动力学 无量纲预测公式 

分 类 号：TE991.5[石油与天然气工程—石油机械设备]