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本文研究了利用畦灌水流运动的数学模型指导畦田灌水技术的方法,首先用正交分析的方法找出了两种不同土质条件下的最优灌水技术参数组合方案,并分析了各灌水技术参数对灌水质量指标的影响程度及各参数间的交互作用。在此基础上分别绘出了两种土质条件下的灌水等效率线图,从等效率线图可直接查出合理的灌水技术参数的取值范围。同时,本文还提出了用理论计算的进水曲线和退水曲线确定灌水技术参数的图解法。
In this paper, we study the method of using the mathematical model of irrigation water flow to guide the irrigation technology of Qiongtian. Firstly, the orthogonal irrigation method is used to find out the optimum combination of irrigation technology parameters under two different soil conditions. The impact of irrigation quality index and the interaction between various parameters. On the basis of this, the irrigation efficiency maps of two kinds of soil conditions were plotted separately, and the reasonable range of irrigation technical parameters can be directly found out from the equivalent efficiency line diagram. At the same time, this paper also put forward the graphic method of determining the technical parameters of irrigation with the influent curve and the backwater curve calculated theoretically.