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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。
By analyzing the characteristics of underwater accident and the process of pollutant transport, a three-dimensional underwater oil spill model based on Lagrange integral method is established. The diffusion and transport behavior of pollutants in the underwater environment, such as uniform density, delamination and velocity stratification, are numerically calculated. The agreement between the simulation results and the experimental data proves the accuracy and effectiveness of the model. The simulation study of the oil spill accident in the Bohai Sea submarine pipeline shows that the model can provide theoretical basis and technical support for the practical application of underwater oil spill risk assessment and emergency response.