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根据连续方程、零惯性的动量方程以及最佳灌水状态概念,建立了描述波涌灌田面行水流动的零惯性模型。用Newton-Raphaon和Preissman法对模型求解实现了波涌灌田面行水流动的模拟,探讨了波涌灌田间入渗和行水机理。用计算机模拟试验的方法,研究了波涌灌灌水技术参数对灌溉系统性能的影响,提出了确定波涌准灌水技术参数的原则和方法以及连续地面灌灌水技术的改进方案。模拟结果得到商丘田间试验的验证。
According to the continuous equation, the momentum equation of zero inertia and the concept of the optimum irrigation condition, a zero-inertia model describing the water flow in the surge field was established. The Newton-Raphaon and Preissman methods were used to solve the model to simulate the water flow in the field of surge irrigation, and the infiltration and the mechanism of water flow were discussed. The influence of the technical parameters of the surge irrigation irrigation on the performance of the irrigation system was studied by the method of computer simulation. The principle and method of determining the technical parameters of the surge irrigation and the improvement of continuous surface irrigation were proposed. Simulation results obtained Shangqiu field test validation.