Open AccessNumerical simulation of the environmental impact of oil spill in the Liuheng Island of Zhoushan City
Author(s) -
Yi Huang,
Yufeng He,
Ming Tang,
Xiangqiang Min,
Yehua Sheng,
Peng Chen
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/601/1/012044
Subject(s) - oil spill , tidal current , current (fluid) , environmental science , diffusion , computer simulation , polygon mesh , geology , marine engineering , computational fluid dynamics , petroleum engineering , meteorology , oceanography , geography , engineering , computer science , simulation , aerospace engineering , physics , computer graphics (images) , thermodynamics
At present, numerical models of 2D tidal current and oil spill have been widely used in simulating the diffusion and spread of spilled oil. Thus, this paper adopts the MIKE21_FM hydrodynamic model, and establishes a 2D tidal current dynamic model based on unstructured meshes in the Liuheng Island of Zhoushan city. After verification by the measured data, it can be found that this model can reflect the hydrodynamic characteristics perfectly, and provide sufficient hydrodynamic conditions for the simulation of oil spill. Based on that, the MIKE21/3 OS model is applied for predicting the risk of oil spill. Accordingly, 8 working conditions are simulated to track the spread and sweeping area of spilled oil. The results show that both oil spill time, tidal current and wind direction can affect oil diffusion, while wind direction is the most dominant factor. Moreover, the sweeping area increases gradually with time, and the maximum area reaches 2018.95 km2 after 72 hours at ebb tide under the wind direction of WNW.