Numerical simulation of the oil spilling diffusion in waterway engineering

Taking Guangli waterway engineering of Dongying Port as background, based on hydrodynamic and Euler-Lagrange theory, a numerical model of two-dimensional tidal current and oil spill diffusion is established and verified by measured data. According to different meteorological conditions, choose representative scenes, the drift range of oil film after oil spill accident and its influence on the surrounding water environment are predicted. Results show that: the range and track of oil film are closely related to the oil spilling time and wind direction. Under no wind condition, the oil sweep area is between 45 km2 and 65 km2 in 24h; Under strong wind direction of NW, the furthest distance to the southeast can be up to 23 km, and the oil sweep area is between 70 km2 and 135 km2 in 24h. Oil spills will have different effects on adjacent reserves. It is suggested that emergency response measures should be taken quickly in case of oil spills to minimize the adverse effects on the surrounding marine environment.