After impoundment of Three Gorges Reservoir,as the special protection waters,oil pollution of the Reservoir Area is widespread public concern.In this paper,orthogonal curvilinear grids have been used to deal with complex boundary.On the basic of the environmental fluid dynamics computer model-DELFT,the oil spill simulation model on Chong Qing of Three Gorges Reservoir is established,and the oil slick transformation and weathering processes such as spreading,drift,evaporation and shoreline are simulated.Comb...