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水力模拟试验是揭示水流运动规律和解决实际工程问题的一种重要手段,水力相似原理是水力模拟试验的理论依据.水力正态模拟的相似理论已较为成熟,在此基础上,借鉴其他水工建筑物变态模拟的方法,从水体受力的角度提出了管流的变态模拟所要遵循的牛顿相似定律及重力、阻力和压力相似准则.这些相似定律和相似准则可用于建立管流(如供水管网)的试验模型,为管网建模和管网系统管理优化提供科学依据.
Hydraulic simulation test is an important means to reveal the law of water flow and solve practical engineering problems. The principle of hydraulic similarity is the theoretical basis of hydraulic simulation test. Similar theory of hydraulic normal simulation is relatively mature. On this basis, The method of building metamorphosis simulates the Newton’s similarity law and the similar rules of gravity, resistance and pressure that metamorphosis of pipe flow from the point of view of water body stress.These laws of similarity and similar criteria can be used to establish pipe flow Network) test model, to provide a scientific basis for pipe network modeling and pipe network system management optimization.