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在模拟明渠水流的流速沿垂向分布、剪应力和泥沙浓度分布时,曾应用了建立在概率基础上的熵的概念。应用最大熵的原则导出了流速分布方程式,它与普朗特-冯·卡门(Prandtl-VonKarman)的通用流速分布方程相比。更具优越性。用于导出流速分布和泥沙输运的熵函数能更有效地反映悬沙,床沙粒径和泥沙浓度的影响。因此,熵函数可以作为表征和比较各种明渠水流的变量。通过熵函数对阐明水流及泥沙输运的各种参数的敏感反映,可获得参数估计所迫切需要的新方程式。这些参数曾因没有足够的方程式而难于确定。熵的概念为水力学中引入概率概念提供了极好的工具,它可对以前所提到的水力学过程中固有的非确定性进行处理,并有助于发展取样的方式,摸拟方法,以及前述的参数估计。
The concept of entropy, which is based on probabilities, has been applied in simulating the vertical, shear and sediment concentrations of open channel flows. The principle of maximum entropy was used to derive the flow rate distribution equation in comparison with the general flow velocity distribution equation of Prandtl-Von Karman. More superiority. The entropy function used to derive the velocity distribution and sediment transport can reflect the influence of suspended sediment, bed sand diameter and sediment concentration more effectively. Therefore, the entropy function can be used as a variable to characterize and compare various open channel flows. Sensitive reflection of various parameters that clarify water flow and sediment transport can be obtained by entropy function, and a new equation that is urgently needed for parameter estimation can be obtained. These parameters were difficult to determine because there were not enough equations. The concept of entropy provides an excellent tool for introducing the notion of probability in hydraulics and can deal with the inherent non-determinism inherent in the hydraulics process mentioned earlier and contribute to the development of sampling methods, methods of simulation, As well as the aforementioned parameter estimates.