水库湖流多负荷数值模拟

Multifunction Numerical Simulation on the Current of Reservoirs and Lakes

系统地研究湖泊、水库中各类水动力外负荷作用 ,考虑了波、流共同作用下的底摩阻、波浪剩余动量流、风作用剪应力、风吹流及悬移质扩散分布等 ,创建了多负荷水动力泥沙数值模拟系统。该系统在引滦入津输水工程中的于桥水库、尔王庄水库湖流流场计算预报中应用 ,模拟结果与实测数据十分吻合。以于桥水库湖流流场计算为例 ,提出包括于桥水库特征年的逐月、特征水文日 ,无风及不同风向风速 ,不同出、入库流量 ,工程输水与否、悬沙输移扩散等内容的多种方案的流场和泥沙扩散分布 。

The various hydrodynamic factor functions on lakes and reservoirs was researched systematically in consideration of bed friction under effect of wave and current, radiational stress, wind shear stress, wind current, suspended load. A multifunction hydrodynamic suspended numerical simulation system was established and applied to the flow pattern calculation and forecast of Yuqiao and Erwangzhuang reservoirs which are included in the important water pilot project Water Transfer from Luanhe River to Tianjin project,and the results are excellent in line with observations. This system was also used to calculate the flow pattern of Yuqiao reservoir as an example to offer many possible current fields and suspended load distributions for protection of water quality of the reservoir.These projects consist of the monthly and typically hydrological days of Yuqiao in special year,velocity at no wind and different wind directions,input and output of reservoir,water transfer, and suspended load distribution.