Li J.,Changjiang River Research Institute |
Jin Z.-W.,Changjiang River Research Institute |
Lin Q.-S.,Changjiang River Research Institute
Shuidonglixue Yanjiu yu Jinzhan/Chinese Journal of Hydrodynamics Ser. A | Year: 2012
Dramatic change in hydrodynamic and aquatic conditions has led to an increasing occurrence of algal bloom in the Xiangxi River, a typical tributary of the Yangtze River near the Three Gorges Project. Nutrients' transport and evolution in this river was simulated by using a two dimensional water quality model with aerodynamic numerical scheme which was validated and verified against filed data of 2007 and 2008. Simulation results reveal that algal bloom occurs when flow velocity falls less than 0.03 m/s. The dynamic process of nutrient evolution during an algal bloom is closely related to the incoming load.