Investigation of downstream unsteady flows of Shiquan hydraulic power station with mathematical model

The lower reach of the Shiquan hydroelectric station is affected,after the Shiquan hydroelectric station in Hanjiang River came into operation.The water level steeply rises and steeply drops,and it is very serious for the river to navigate.The one-dimension mathematics model is built,and is verified by the non-constant flow data from the Shiquan hydrologic station to Hanwangcheng,the result shows that the stability is good and the accuracy is high.A new release discharge process of the Shiquan hydroelectric station is generalized from many discharge processes of that,and which can be satisfied with the requirement of the guarantee rate of designed minmum discharge.