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Comprehensive Analysis on Calculation Iterative Methods for Natural River and Open Channel Water Curve

机译：天然河道与明渠水位曲线计算迭代方法的综合分析

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The flow pattern is slow flow because of slow slope of natural water in plain zones. The numerical calculation methods of water surface line. In mountain zones, the slope is steep and the flow pattern is rapid flow. The iterative calculation method for slow flow is not suitable for rapid flow. For non-prism channel, the relationship between section geometric elements and process coordinates is the similar. When both of them are slow flow, the water depth or water level term in unit kinetic energy is as main function value in iterative calculation, Otherwise, both of them are rapid flow, the main function value is the water depth or water level term in unit potential energy. The examples show the methods can get satisfied results.
机译：由于自然水在平原地区的缓慢坡度，水流模式是缓慢的水流。水面线的数值计算方法。在山区，坡度陡峭，流态为急流。慢流量的迭代计算方法不适用于快流量。对于非棱镜通道，截面几何元素与过程坐标之间的关系相似。当它们都是慢流量时，单位动能中的水深或水位项是迭代计算中的主要函数值;否则，它们都是快流时，它们的主要功能值是迭代中的水深或水位项。单位势能。实例表明，该方法可以获得满意的结果。

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