调洪演算的有限差分法

Method of Finite Difference in Calculation of Flood Regulation

在利用自然样条函数拟合洪水流量过程线、水库特性曲线等调洪资料的基础上，导出调洪演算的微分方程式；使用龙格一库塔法，不必试算便可直接求解水库下泄流量过程。此法对汛期水库的实时调度运行具有意义。

By making use of flood regulation information in which discharge hydrograph, reservoir characteristic curve are simulated by utilizing natural spline function, differential equation of flood regulation calculation is derived;discharge of reservoir can be derived direclty without trial calculation by adopting Rung-Kutta method. The method is of significance in real-time dispatching operation on reservoir in flood period.