The present work deals with the modeling of the cyanobacteria blooms phenomenon from Lake Taihu in China by a 3D hydro-ecological model and the implementation of this model for the simulation. The model is composed of: (1) a model of the lake hydrodynamics in two di- mensions: we used the Shallow Water equations which are a particular case of Navier- Stokes equations, where the vertical dimension is neglected; (2) a Water Quality Model (WQM): we used the Water Quality Analysis Simulation Program(WASP) model in which are represented the reactions between ecological variables such as phytoplankton, oxygen, nitrogen and phosphorus, and the transport and diffusion of these substances by the fluid (in our case the water). For the numerical resolution of the partial differential equations involved, the finite volume method was used with a non-uniform triangular mesh of the lake. The Navier- St...

The present work deals with the modeling of the cyanobacteria blooms phenomenon from Lake Taihu in China by a 3D hydro-ecological model and the implementation of this model for the simulation. The model is composed of: (1) a model of the lake hydrodynamics in two di- mensions: we used the Shallow Water equations which are a particular case of Navier- Stokes equations, where the vertical dimension is neglected; (2) a Water Quality Model (WQM): we used the Water Quality Analysis Simulation Program(WASP) model in which are represented the reactions between ecological variables such as phytoplankton, oxygen, nitrogen and phosphorus, and the transport and diffusion of these substances by the fluid (in our case the water). For the numerical resolution of the partial differential equations involved, the finite volume method was used with a non-uniform triangular mesh of the lake. The Navier- St...