Numerical study on the characteristics of wind-induced current in Taihu Lake

In this paper, a depth-averaged two-dimensional hydrodynamic model for Taihu Lake was developed, and the some parameters and numerical approach of the model were given based on understanding the characteristics of landform and hydrodynamic of Taihu Lake. By numerical simulating, the basic modalities of the wind-induced current of Taihu Lake were analyzed, and the model was verified by comparing with data of the survey current. Further more, the performances of the wind-induced current and hydrodynamics of Taihu Lake in the prevailing wind were simulated, the results show that the wind-induced current in Taihu Lake is formed by the wind, the lake boundary and the landform of the lake bottom as well. There are obvious different laws of the current and hydrodynamics in different lake regions, and the reason caused the difference is analyzed with the fluid flow mechanism.