畦灌水流的零惯量模型

介绍了地面灌溉中畦灌水流运动的特性及零惯量模型。采用欧拉积分对基本方程离散化，并用Ｎｅｗｔｏｎ—Ｒａｐｈｓｏｎ法数值求解。本文介绍的数值求解畦灌水流运动的方法比采用完全水动力学特征线求解方法稳定性好、收敛快、计算较为简单且节省机时。应用数学模拟求解畦灌水流运动和沿程水流入渗过程与水量分配便于多方案分析计算，为选取合理的灌水技术参数组合提供有效的技术手段。

The zero-inertia model of foe border irrigation flow movement

The characters of border irrigation water flow movement of surface irrigation and its zero-inertia model have been introduced.The fundamental equations of border irrigation flow movement can be discreated by the Eulerian integration method,and the Newton-Raphson procedure has been used for solving the simultaneous equations.The method of numerical solution for border irrigation introduction in this paper has more numerical stability, rapid convergency and substantially lower execution costs.Applying mathematical simulation technique for solving water flow movement and infiltration process of surface irrigation will be convenient for multi-alternative analysis,provide an effective approach for selecting reasonable combination of the irrigation technical parameters.