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建立了嵌套模式的渤海二维水动力数学模型,模型网格采用显隐交替有限差分格式(即ADI差分格式)进行计算.用追赶法逐段求解,用调和分析法计算模型的水动力边界条件,将潮汐过程计算结果与实测资料进行对比验证其结果吻合良好.溢油数学模型理论公式考虑了实时风场和表面流场作用下油膜质心的迁移和扩散范围,模拟了海上溢油油膜运动轨迹,并用水槽实验验证了公式的正确性.在水动力模型基础上应用溢油运动模式建立了海洋溢油数学模型,对风场作用和无风作用两种条件下的静止点源瞬时溢油和连续溢油运动轨迹和扩散范围进行了计算、分析和比较,并计算了有、无风场作用时移动点源连续溢油污染扩散范围,为海洋溢油数学模型的研究提供了较完整的思路.
A nested model Bohai Sea hydrodynamic model is established, and the model grid is calculated by the explicit finite difference scheme (ADI difference scheme). The chaotic method is used to solve the model one by one, and the hydrodynamic boundary Conditions, the tidal process results are compared with the measured data to verify the results of good agreement.The theoretical formula of oil spill mathematical model takes into account the real-time wind field and surface flow field under the action of oil film center of mass migration and diffusion range, simulation of the oil spill on the sea Trajectory and the correctness of the formula was verified by a sink experiment.A mathematical model of ocean oil spill was established based on the model of oil spill movement based on the hydrodynamic model.The instantaneous spillover of static point source under the condition of wind field and no wind action And the trajectory and diffusion range of continuous oil spill were calculated, analyzed and compared, and the range of continuous oil spill pollution diffusion with and without moving wind source was calculated, which provided a more complete Ideas.