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Experimental testing for the influences of rotation and tip clearance on the labyrinth seal in a compressor stator well

机译：旋转和叶尖间隙对压缩机定子井迷宫式密封的影响的实验测试

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摘要

The design of the inter-stage seal in an axial compressor is an important topic because the leakage flow across the stator well would lead to aerodynamic mixing losses with the main flow, which will consequently impact the efficiency of the compressor. In this region, the leakage flow is normally controlled by a labyrinth seal with upstream and downstream rotating cavities. In addition, the long rotating wall results in substantial temperature rise and swirl flow development. In particular, the swirl flow in the compressor stator well has a great influence on the leakage behavior of the labyrinth seal. Therefore, it is essential to understand the leakage characteristic, windage heating characteristic and swirl flow characteristic of the stator well.
机译：轴向压缩机中级间密封件的设计是一个重要的课题，因为穿过定子井的泄漏流将导致与主流的空气混合损失，从而影响压缩机的效率。在该区域，泄漏流量通常由带有上游和下游旋转腔的迷宫式密封装置控制。此外，较长的旋转壁会导致温度大幅上升并产生涡流。尤其是，压缩机定子井中的旋流对迷宫式密封的泄漏行为有很大的影响。因此，必须了解定子井的泄漏特性，风加热特性和涡流特性。

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  • 来源
    《Aerospace science and technology》 |2017年第12期|556-567|共12页
  • 作者

    Kong Xiaozhi; Liu Gaowen; Liu Yuxin; Zheng Longxi;

  • 作者单位

    Northwestern Polytech Univ, Sch Power & Energy, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Sch Power & Energy, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Sch Power & Energy, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Sch Power & Energy, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Compressor stator well; Leakage behavior; Windage heating; Swirl flow; Rotation; Tip clearance;

    机译：压缩机定子井;泄漏行为;风振加热;旋流;旋转;倾斜间隙;

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