摘要
通过对水下溢油事故特点以及污染物输移过程的分析,建立基于拉格朗日积分方法的三维水下溢油模型。数值计算了污染物在密度均匀、密度分层以及流速分层等水下环境中的扩散和输移行为,模拟结果与实验数据的吻合证明了该模型的准确性和有效性。通过渤海海底输油管道溢油事故的模拟算例研究,结果表明该模型可为水下溢油事故的风险评估、应急响应等实际应用提供理论依据和技术支持。
Based on the analysis of the characteristics of different underwater accidents （e. g. pipe line broke up, oil well blowout） and the pollutant transport processes in such spill accidents, a three-dimensional underwater oil spill model was developed using the Lagrangian integral method. The model was used to simulate the pollutant trajectories under different underwater conditions, including the un-stratified stagnant, density stratified and un-stratified flowing environments, and the good agreements with the experiment data were achieved. The result showed thai the model was exact and effective. A simulation example of pipeline oil spill on the seabed was presented. The study results showed that the model can be used as a powerful tool for the risk assessment, emergency response and underwater oil spill accidents.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2011年第4期578-582,共5页
Marine Environmental Science
基金
国家海洋局海洋溢油鉴别与损害评估技术重点实验室开放基金(201022)
中央高校基本科研业务费专项资金
关键词
水下溢油
输移扩散
数值模拟
轨迹预报
underwater oil spill
transport and diffusion
numerical simulation
trajectory prediction
