首页> 外文期刊>Aerospace science and technology >Effect of discrete endwall recirculation on the stability of a high-speed compressor rotor
【24h】

Effect of discrete endwall recirculation on the stability of a high-speed compressor rotor

机译:离散端壁再循环对高速压缩机转子稳定性的影响

获取原文
获取原文并翻译 | 示例
       

摘要

A numerical study has been carried out to understand the effect of discrete endwall recirculation on the performance of a transonic axial compressor rotor. Twenty-two recirculation passageways were designed and placed uniformly around the casing, and time-accurate simulations were performed with and without recirculation. The effect of recirculation on the rotor overall performance, tip flow structure and unsteady response of the leakage flow are presented and discussed. The amount of recirculation is not constant in this work, mostly owing to the injector-shock wave interaction. Results indicate that the tip leakage vortex and passage shock are periodically pushed rearwards due to recirculation. It is further found that at the near-stall point, with or without recirculation, the interface between the leakage and oncoming flows tends to become parallel to the leading-edge plane, and that recirculation increases stability by postponing this situation to lower mass flows. The flow field within recirculation passageway was also investigated, and the axial and circumferential components of the bled air were found to be mainly responsible for the total pressure loss.
机译:进行了数值研究,以了解离散端壁再循环对跨音速轴向压缩机转子性能的影响。设计了22条再循环通道并将其均匀地放置在套管周围,并在有或没有再循环的情况下执行了时间精确的模拟。介绍并讨论了再循环对转子整体性能,叶尖流动结构和泄漏流的不稳定响应的影响。在这项工作中,再循环量不是恒定的,这主要是由于喷油器-冲击波的相互作用。结果表明,由于再循环,尖端泄漏涡和通道冲击被周期性地向后推动。进一步发现,在有或没有再循环的近失速点,泄漏流和即将来临的流之间的界面趋于平行于前沿平面,并且通过将这种情况推迟到较低的质量流,再循环增加了稳定性。还研究了再循环通道内的流场,发现排出空气的轴向和周向分量是造成总压力损失的主要原因。

著录项

  • 来源
    《Aerospace science and technology》 |2014年第8期|130-137|共8页
  • 作者

    Hossein Khaleghi;

  • 作者单位

    Department of Aerospace Engineering, Center of Excellence in Computational Aerospace Engineering, Amirkabir University of Technology, 15875-4413 Tehran, Iran;

  • 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

    Transonic compressor; Endwall recirculation; Stall control;

    机译:跨音速压缩机端壁再循环;失速控制;
  • 入库时间 2022-08-18 02:32:25

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号