滨海梭电站存发生事故情况下.会产生大量的放射性废液进入海洋.对海洋环境造成污染。为了评价对海洋环境造成的辐射后果,提出了采用POM模式进行流场模拟,拉格朗日粒子随机游走模式进行污染物迁移扩散模拟的方法。采用拉格朗日粒子随机游走模式进行浓度计算时,为了克服质点法计算浓度造成的涨落问题.提出采用核函数的方法进行浓度计算。对4类核 Under the circumstance of an incident occurring in the coastal shuttle station, a large amount of radioactive waste liquid will enter the ocean and pollute the marine environment. In order to evaluate the radiation effects on the marine environment, a method of simulating the migration and diffusion of pollutants using the POM model for flow field simulation and Lagrangian particle random walk mode is proposed. In order to overcome the fluctuation caused by the particle concentration method when calculating the concentration using the Lagrange particle random walk model, a kernel function method is proposed to calculate the concentration. The four types of nuclear