储能科学与技术 ›› 2024, Vol. 13 ›› Issue (6): 1940-1962.doi: 10.19799/j.cnki.2095-4239.2024.0057

• 储能系统与工程 • 上一篇    下一篇

压气机叶顶间隙流动与控制研究进展

韩汶昕1,2(), 张雪辉1,2(), 许剑3, 傅力宏1, 蒋鑫1,4, 郭文宾1,2, 谢宇超1,2, 陈海生1,2   

  1. 1.中国科学院工程热物理研究所,北京 100190
    2.中国科学院大学,北京 100049
    3.中国科学院办公厅,北京 100045
    4.杭州电子科技大学能源研究所,浙江 杭州 310018
  • 收稿日期:2024-01-17 修回日期:2024-03-03 出版日期:2024-06-28 发布日期:2024-06-26
  • 通讯作者: 张雪辉 E-mail:hanwenxin@iet.cn;zhangxuehui@iet.cn
  • 作者简介:韩汶昕(1999—),男,硕士研究生,压缩空气储能系统叶轮机械气动热力学,E-mail:hanwenxin@iet.cn
  • 基金资助:
    压缩空气储能关键科学问题研究(51925604);CAES离心压缩机叶顶间隙非定常流场结构与高效调节研究(52106278);高压涡轮非定常流动气热耦合设计方法及验证(J2019-Ⅱ-0008-0028)

Research progress on flow and control of compressor tip clearance

Wenxin HAN1,2(), Xuehui ZHANG1,2(), Jian XU3, Xin JIANG1, Lihong FU1,4, Wenbin GUO1,2, Haisheng CHEN1,2   

  1. 1.Institute of Engineering Thermophysics, Chinese Academy of Science, Beijing 100190, China
    2.University of Chinese Academy of Sciences, Beijing 100049, China
    3.General Office, Chinese Academy of Science, Beijing 100045, China
    4.Institute for Energy Studies, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China
  • Received:2024-01-17 Revised:2024-03-03 Online:2024-06-28 Published:2024-06-26
  • Contact: Xuehui ZHANG E-mail:hanwenxin@iet.cn;zhangxuehui@iet.cn

摘要:

压缩空气储能被视为最具发展潜力的物理储能技术,作为其核心部件,压气机的性能表现在较大程度上决定着储能系统的经济性和效率。叶顶间隙流动因其复杂的三维流动特性,对压气机内部流场结构变化存在重要作用,是影响整机性能的关键因素。文章依照叶顶结构特点分类总结了带冠、无冠轴流压气机和开式/半开式、闭式离心压气机叶顶间隙流动产生的机理,根据压气机流动特性,进一步综述国内外压气机叶顶间隙流动的研究进展,形成以下结论:对于无冠轴流压气机,非定常叶顶间隙流动与失速、叶片噪声及振动问题密切相关,需扩充研究成果以优化叶顶设计;带冠轴流压气机缺乏实验和数据支撑,流动控制手段单一,可尝试跨领域应用控制技术;离心压气机叶顶间隙流动研究仍需探索变间隙特性和周向不均匀性对流动结构的影响,并提升应对流场变化的能力。未来研究可着重于高精度数值模拟方法的应用推广、跨领域控制技术的尝试和复合结构的探索。

关键词: 压缩空气储能, 压气机, 叶顶间隙流动, 流动控制技术

Abstract:

Compressed air energy storage is regarded as one of the most promising technologies for physical energy storage, as the compressor's performance plays a crucial role in determining the economic viability and efficiency of the system. The efficiency of the compressor is significantly influenced by its tip-clearing flow, owing to its complex three-dimensional flow characteristics. This flow affects the structural changes within the internal flow field of the compressor, marking it as a key factor in the compressor's performance. Tip clearance flow remains a challenging and crucial topic in this field owing to its complex flow properties and significant effect on the aerodynamic design of the compressor. This study classifies and summarizes the mechanisms and research significance of blade tip clearance flow across various compressor types: shrouded and unshrouded axial compressors, as well as open/semi-open and closed centrifugal compressors. According to the flow characteristics of compressors, the research progress on blade tip clearance flow domestically and abroad is further reviewed. The key findings include: unsteady tip clearance in unshrouded axial-flow compressors, which is closely related to stall, blade noise, and vibration, underscoring the need to optimize tip design. Shrouded axial compressors have received little attention owing to the lack of experimental data and limited flow control methods. The application of control technologies in different fields could be beneficial. For centrifugal processors, future studies should investigate how variable clearance characteristics and circumferential inhomogeneity affect the flow structure and improve the adaptability of flow field variation. Future research should focus on the application and popularization of high-precision numerical simulation methods, attempts at cross-domain control technology, and the exploration of composite structures.

Key words: compressed air energy storage, compressor, tip clearance flow, flow control techniques

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