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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 characteristics and zero inertia model of water flow in 畦 irrigation are introduced. The Euler integral is used to discretize the basic equations and solved numerically with the Newton-Raphson method. In this paper, the method of numerical solution 畦 irrigation flow motion than the method of using complete hydrodynamic characteristic line to solve the method of good stability, fast convergence, the calculation is relatively simple and save time. The application of mathematical simulation solution 畦 irrigation flow and along the water infiltration process and water allocation to facilitate the analysis and calculation of multiple programs, in order to select a reasonable combination of irrigation technology parameters to provide effective technical means.