基于高精度GPS测量数据的宁夏鸭子荡水库水动力-水质数值模拟研究

Research on Numerical Simulation of Hydrodynamic and Water Quality of Ningxia Yazidang Reservoir Based on High Precision GPS Measurement Data

以宁夏鸭子荡水库为研究对象,对该水库的实测数据进行分析,利用平面二维水动力-水质数学模型,以非结构网格和有限体积法为工具对水库的水流运动进行了数值模拟。首先由流场的模拟值与实测值两者较为一致,验证了数学模型的主体模块和数值方法是可行的。然后,结合水库的运行情况设置了四种工况,对库区水流运动和水质分布进行了数值模拟研究,为进一步研究该水库的水质变化规律奠定了基础,对水库的高效运行具有一定的参考价值。

Taking Ningxia Yazidang reservoir as the research object, the measured data of the reservoir were analyzed. Based on the two-dimensional hydrodynamic force and water quality mathematical model, the unstructured grid and the finite volume method are used to simulate the water flow of the reservoir. Firstly, the simulation value is consistent with the measured values, so it is proved that the main module and numerical method of the mathematical model are feasible. Then, combined with the operation of the reservoir, four kinds of working conditions were set up, and the flow movement and water quality distribution in the reservoir area were studied by numerical simulation, which laid the foundation for the further study on the change of water quality of water base, and it has a certain reference value for the efficient operation of the reservoir.