NUMERICAL SIMULATION STUDY OF OIL SPILL DIFFUSION IN THE QUANZHOU BAY AREA BASED ON AN OIL PARTICLE MODEL

Xiao-Feng Guo ； Chu-Han Chen ； Jun-Jian Tang ； Zhou-Hua Guo

《Journal of Marine Science and Technology》 25卷5期 (2017/10) Pp. 607-616

https://doi.org/10.6119/JMST-017-0710-2

摘要

Based on a two-dimensional tidal current mathematical model, this study used the oil particle method to establish an oil spill model in the Quanzhou Bay area to simulate the oil film drift path and degree of impact after the oil spill under various tidal conditions, i.e., the maximum flood, spring tide, maximum ebb and low tide in a tidal cycle under conditions of calm wind, the prevailing northeasterly wind in winter and the prevailing southwesterly wind in summer. The simulation results indicate that the drift trajectory of oil film in the Quanzhou Bay area was primarily influenced by the position of the oil spill point, wind conditions and tide when the oil spill occurred: marine areas of approximately 40-117 km^2, 18-117 km^2, and 51-159 km^2 were affected by the oil film in 12 hours in a NE wind-driven current in winter, a SW wind-driven current in summer, and calm wind conditions, respectively. This study provides the scope and degree of influence of possible oil spill accidents in the Quanzhou Bay area and the time intervals between when an oil spill occurs and when sensitive targets become affected. This work offers scientific support for decision making and environmental damage assessment for oil spill emergencies, as well as useful exploration criteria for the accurate simulation of oil spill diffusion at sea.

關鍵字

Quanzhou Bay ； oil particle model ； oil spill ； numerical simulation