Labyrinth seal leakage and dynamics characteristics analysis based on Black Model

被引:1
|
作者
马文生 [1 ,2 ]
陈照波 [1 ]
焦映厚 [1 ]
沈那伟 [2 ]
机构
[1] School of Mechatronics Engineering,Harbin Institute of Technology
[2] Rotor Dynamics Laboratory,Virginia Tech,Blacksburg,VA 24061,USA
基金
中国国家自然科学基金;
关键词
labyrinth seal; leakage; black-child model; dynamics characteristics;
D O I
暂无
中图分类号
TH136 [其他机械元件];
学科分类号
080203 ;
摘要
One of the important problems to be tackled in turbo machines is the leakage dynamics characteristics of labyrinth seals. In this paper we analyzed the effect of labyrinth seal structure and the change in fluid flow pressure on the leakage characteristics of seal. Computational fluid dynamics (CFD) model for 3D labyrinth seal was built which provides a basis for reducing steam flow excitation. The streamline pattern and the pressure drop characteristics for leakage of steam through a labyrinth seal was investigated. Simulations of internal flow and leakage characteristics had been performed by CFD software and Black-Child model. The results showed that the amount of leakage is directly proportional to the tooth gap and inlet pressure and inversely proportional to the cavity depth and outlet pressure. The proposed CFD model provides a feasible method to predict the leakage characteristics of labyrinth seal in response to the structure of seal and the change in inlet-outlet pressures.
引用
收藏
页码:58 / 62
页数:5
相关论文
共 50 条
  • [41] Study on Labyrinth Seal Leakage Flow With Piston Eccentric Motion in a Labyrinth Compressor
    Yu, Xiao-Ling
    Lv, Qian
    Pang, Yu-Chi
    Wang, Kun
    Jin, Li-Wen
    Lu, Zhao
    JOURNAL OF THE CHINESE SOCIETY OF MECHANICAL ENGINEERS, 2020, 41 (05): : 623 - 626
  • [42] Study on Labyrinth Seal Leakage Flow With Piston Eccentric Motion in a Labyrinth Compressor
    Yu, Xiao-Ling
    Lv, Qian
    Pang, Yu-Chi
    Wang, Kun
    Jin, Li-Wen
    Lu, Zhao
    Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao, 2020, 41 (05): : 623 - 626
  • [43] Numerical investigation on the effect of labyrinth seal configuration on leakage
    Zhang, Tianlu
    Zhang, Xi
    Chen, Xuemei
    Jia, Yifan
    2017 INTERNATIONAL CONFERENCE ON ELECTRONIC INFORMATION TECHNOLOGY AND COMPUTER ENGINEERING (EITCE 2017), 2017, 128
  • [44] Leakage and rotordynamic performance of T type labyrinth seal
    Jia, Xingyun
    Zheng, Qun
    Jiang, Yuting
    Zhang, Hai
    AEROSPACE SCIENCE AND TECHNOLOGY, 2019, 88 : 22 - 31
  • [45] INFLUENCE OF LABYRINTH SEAL LEAKAGE ON CENTRIFUGAL COMPRESSOR PERFORMANCE
    Mischo, Bob
    Ribi, Beat
    Seebass-Linggi, Christof
    Mauri, Sebastiano
    PROCEEDINGS OF ASME TURBO EXPO 2009, VOL 7, PTS A AND B, 2009, : 1283 - 1293
  • [46] Investigation on the Effect of Honeycomb to the Leakage of Labyrinth Seal Within Support Seal System
    Zhang, Wei
    Vinogradov, Aleksandr S.
    Sun, Peng
    2023 ASIA-PACIFIC INTERNATIONAL SYMPOSIUM ON AEROSPACE TECHNOLOGY, VOL I, APISAT 2023, 2024, 1050 : 1516 - 1535
  • [47] Study on the leakage flow characteristics of brush seal based on porous medium model
    Institute of Turbomachinery, Xi'an Jiaotong University, Xi'an 710049, China
    不详
    Hsi An Chiao Tung Ta Hsueh, 2007, 7 (768-771+779): : 768 - 771
  • [48] Effects of Clearances on the Leakage Flow Characteristics of Two Kinds of Brush Seals and Referenced Labyrinth seal
    Li, Jun
    Huang, Yangzi
    Li, Zhigang
    Feng, Zhenping
    Yang, Hong
    Yang, Jiandao
    Shi, Liqun
    PROCEEDINGS OF THE ASME TURBO EXPO 2010, VOL 4, PTS A AND B, 2010, : 1133 - 1142
  • [49] Numerical and Experimental Study on the Influence of Honeycomb Bushing Wear on the Leakage Flow Characteristics of Labyrinth Seal
    Xu, Wenfeng
    Wang, Zeming
    Sun, Dan
    Ren, Guozhe
    Li, Yu
    Lu, Dezheng
    JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 2024, 146 (08):
  • [50] Numerical Investigations on Leakage Flow and Frictional Heat Transfer Characteristics of Labyrinth-Brush Seal
    Zhang Y.-Q.
    Li J.
    Xie Z.-Y.
    Deng G.-Y.
    Tuijin Jishu/Journal of Propulsion Technology, 2022, 43 (12):