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通过对Eckardt离心叶轮数值计算与实验结果的对比,分析半开式离心叶轮内部二次流的形成机理与分布,建立基本的半开式离心叶轮内部三维二次流模型;基于该二次流模型,对射流尾迹结构的特点与形成机理进行了详细的分析和说明。

Based on the comparisons between numerical computations and experimental results of the Eckardt's impeller, formation mechanisms and distributions for the secondary flow structures of the unshrouded impeller is analyzed, and a 3D secondary flow model for the unshrouded impeller is built. Analyses and specifications for the features and mechanism of the Jet/Wake structure are orovided based on the 3D secondary flow model.

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