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Mathematical modelling for the analysis of hydraulic structures

机译：水工结构分析的数学模型

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This article presents numerical simulations of complex free-surface flow over spillways, and considerations on the possibility of complementary or even the alternative use of numerical analysis for design purposes rather than hydraulic physical models, in cases when physical scale models are not economically feasiblern(small projects) or when time for the construction and testing of physical models is not available. Twornprojects are considered in the analysis; numerical results are compared with experimental results, and the differences identified are discussed with a view of practical applications for design purposes.rnThe complex behaviour of three-dimensional turbulent flows and their mathematical representation often requires physical models to simulate hydraulic conditions and to determine the design parameters for hydraulic structures. Today, with the increasing capacity of computers, mathematical models are more and more powerful when compared with physical models. They can produce design information in a more economical, flexible and rapid way. However there are still doubts among many hydraulic project designers about the completeness and precision of mathematically derived parameters to define flow characteristics in relation to the values which needed to be obtained for the design of water infrastructure.
机译：本文介绍了溢洪道上复杂的自由表面流动的数值模拟，并考虑了在物理规模模型在经济上不可行的情况下，出于设计目的而不是液压物理模型补充或什至替代使用数值分析的可能性的考虑。项目），或者没有足够的时间来构建和测试物理模型。分析中考虑了两个项目；将数值结果与实验结果进行比较，并出于设计目的的实际应用角度讨论识别出的差异。rn三维湍流的复杂行为及其数学表示通常需要物理模型来模拟水力条件并确定设计水工结构的参数。如今，随着计算机容量的增加，与物理模型相比，数学模型变得越来越强大。他们可以以更经济，灵活和快速的方式生成设计信息。但是，在许多水利工程设计人员中，人们仍然怀疑数学得出的参数的完整性和精确性，这些参数定义了与水基础设施设计所需的值相关的流量特性。

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