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中文摘要：
基于试验结果评价了基于k-ω SST两个方程的DES湍流模型在空化流动中的应用，分别计算了绕Clark-y型水翼云状空化与Hydronautics型水翼超空化流动，获得了随时间变化的空穴形态与流场结构细节。通过与试验结果对比发现，DES方法对于高雷诺数的绕水翼空化流动的预测是合理的，可以准确地模拟出空穴形态的非定常特性和空泡团交替脱落的非定常细节。
英文摘要：
To assess the DES model based on k-ω SST turbulence model, a cloud cavitating flow around a Clark-y hydrofoil and the supercavitation flow around the Hydronautics hydrofoil were numerically simulated. The time evolutions of the shape of cloud cavities have been obtained, and compared with experimental results. It is shown that the DES model can successively predict the characteristics of cavitation and the detail process of the cavitation shedding.
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