Numerical Study Of Three-dimensional Hydrodynamic And Water Quality Constituents In Dahuofang Reservoir Based On Unstructured Grid

Reservoirs are important elements of water resources, providing services for humans for example electric power generation, irrigation, flood control, high quality water resources and providing services for habitats for innumerable species of animals and plants. Dahuofang Reservoir, located at Liaoning Province, serves as drinking water source area to the two major cities of Fushun and Shenyang. After2010, Dahuofang Reservoir will be the drinking water sources including seven cities in Liaoning. Therefore, the water resources have become increasingly prominent in the central city of Liaoning Province, and it stands in an important strategic position in the construction and life of the people. To ensure environmentally safe of water resources is related to the survival of people of the province and overall development of the national economy.(1) First of all summarizing the domestic and foreign research progress of Reservoir and Lake dynamic, analysising hydrodynamics and current situation of Dahuofang Reservoi.(2) Based on unstructured, accommodated irregular bathymetry model, establishing three dimensional hydrodynamic model of Dahuofang Reservoir. The model performance was verified by using the water level elevation data collected from April1,2008through November1,2008. There was a good agreement between the observed and predicted water surface elevations. Generally, the model captures the water level variation reasonably well, providing calculated data for the simulation of water quality.(3) At last, simulating water quality in Dahuofang Reservoir based on indirect coupling. Numerical simulation hydrodynamic of Dahuofang Reservoir in which whole simulation outputs are saved and used to drive the water quality constituents. First, using FVCOM model simulates hydrodynamic, and water quality calculations are conducted using WASP kinetics. The approach allows the FVCOM and WASP linkage code to employ the same mesh and fluxes directly without any modification, and then continue to conduct eutrophication kinetics using the water quality variables. Through numerical simulation, the model captures the water quality constituents reasonably well.