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Application of Hybrid Methods to Calculations of Vortex Precession in Swirling Flows

机译:混合方法在旋流中计算涡流预防的应用

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Application of DES method for swirling flows was considered. Swirling flow in a diffuser and vortex breakdown past an abrupt expansion were considered to test the application of detached eddy simulation method for swirling flows. Calculations of unsteady flows in draft tube of Kaplan turbine Holleforsen and in draft tube of high head Francis turbine were provided to investigate vortex rope precession in hydro turbine.
机译:考虑了DES方法的应用。扩散器中的旋转流动和涡流分解过去突然的展开突然扩展以测试分离的涡流模拟方法对旋流的应用。提供了Kaplan涡轮机Holleforsen草稿中的不稳定流量的计算,并在高头兰氏涡轮机草稿中进行了调查涡旋绳进料中的水力涡轮机。

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