黄土区波涌畦灌条件下地表水流运动实验与数值模拟

Surface Water Movement in Surge Border Irrigations on Loess Plateau:Laboratory Experiment and Numerical Simulation

摘要: 探讨了西北黄土区波涌畦灌条件下地表水流运动问题,在室内重复进行了黄土坡地波涌畦灌实验,建立了相应的数学模型,采用有限差分法求得的数值解与实验观测过程拟合良好,证明了模型的可行性。同时,依据实验及数值模拟的结果分析了波涌畦灌地表水流运动的一般特性。

Abstract: The surface water movement under surge border irrigation is considered. According to indoor experiment for surge irrigations, a corresponding mathematical model was established, which showed a good covariance to the experiment data while used for numerical simulation. Moreover, the general characteristics of surface flow under surge border irrigation are analized with the measured and predicted values.