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Simulating Flow Over Circular Spillways by Using Different Turbulence Models

机译：使用不同湍流模型模拟圆形溢洪道上的水流

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AbstractFluent software has been used to simulate flow over a circular spillway and results were compared with experimental data. As the flow over a circular spillway is turbulent and has a free surface, its characteristics are complex and often difficult to be predicted. This study assesses the performance of some turbulence models to predict the hydraulic condition of flow over circular spillways. The Volume of Fluid (VOF) method is applied to obtain the free surface in each case. Such cases include highly swirling flows, stress-driven secondary flows and flows over circular spillways. Finally it is concluded that the results of RSM, RNG k-ε, Realizable k-ε, SST k-ω turbulence models agree well with experimental data.
机译：摘要Fluent软件已用于模拟圆形溢洪道上的流动，并将结果与​​实验数据进行了比较。由于在圆形溢洪道上的流动是湍流且具有自由表面，因此其特征很复杂，通常很难预测。这项研究评估了一些湍流模型的性能，以预测圆形溢洪道上水流的水力状况。在每种情况下，均采用“流体体积”（VOF）方法获得自由表面。这种情况包括高涡流，应力驱动的二次流和圆形溢洪道上的流。最后得出结论，RSM，RNGk-ε，可实现的k-ε，SSTk-ω湍流模型的结果与实验数据吻合良好。

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