Advanced Search
Volume 41 Issue 8
Aug.  2015
Turn off MathJax
Article Contents
Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(8): 1546-1552.
LIU Jian, WANG Zhili, DING Leiet al. Numerical simulation and performance analysis of leaf seal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1546-1552. doi: 10.13700/j.bh.1001-5965.2014.0593(in Chinese)
Citation: LIU Jian, WANG Zhili, DING Leiet al. Numerical simulation and performance analysis of leaf seal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1546-1552. doi: 10.13700/j.bh.1001-5965.2014.0593(in Chinese)
shu

Numerical simulation and performance analysis of leaf seal

doi: 10.13700/j.bh.1001-5965.2014.0593

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 25 Sep 2014
  • Publish Date: 20 Aug 2015
    Abstract
  • In order to obtain the result of pressure and velocity distribution and leakage of the leaf seal system which is applied to high-speed rotor, a mathematical model of sealing zone flow field calculated numerically with SIMPLER method and finite difference method was established. A software based on the algorithm referred was also designed specially for the performance analysis of leaf seal system. The influence of different structure parameters and working conditions on the system's performance was discussed. Analysis result shows that the leakage increases linearly with the sealing pressure and decreases slightly with the increase of rotor speed. Increasing width, reducing spacing between front/back cover plate to rotor and decreasing length are beneficial in decreasing the leakage of the system. While changing installation angle direction of the leaf has little influence on leakage. Research on dynamic response between leaf and rotor will be carried out based on the results of the flow field.

     

    • FullText(HTML)
  • loading
    • References(16)
  • [1]
    胡广阳. 航空发动机密封技术应用研究[J].航空发动机,2012,38(3):1-4. Hu G Y.Application research of seal technologies for aeroengine[J].Aeroengine,2012,38(3):1-4(in Chinese).
    [2]
    Aksit M F A. Computational study of brush seal contact loads with friction[D].New York:Rensselaer Polytechnic Institute, 1998.
    [3]
    谢晓俊,康宁. 低泄漏高寿命刷式封严的数值计算[J].航空动力学报,2003,18(6):824-826. Xie X J,Kang N.Numerical of low and high endurance brush seal[J].Journal of Aerospace Power,2003,18(6):824-826(in Chinese).
    [4]
    王之栎,梁小峰, 黄其武.刷式密封二维模型数值计算[J].航空动力学报,2008,23(8):1461-1465. Wand Z L,Liang X F,Huang Q W.Two-dimensional model mathematical simulation of brush seals[J].Journal of Aerospace Power,2008,23(8):1461-1465(in Chinese).
    [5]
    Jahn I H J, Franceschini G,Owen A K,et al.Experimental characterisation of the stiffness and leakage of a prototype leaf seal for turbine applications,ASME Paper GT2008-51206[R].Berlin:ASME,2008.
    [6]
    Jahn I H J, Gillespie D,Cooper P.Hydrodynamic air-riding in leaf seals,ASME Paper GT2013-95585[R].Berlin:ASME, 2013.
    [7]
    Flower R F J. Abdichtung:European,Patent EP0391676A1[P].1990-10-10.
    [8]
    Wright C. Resilient strip seal arrangement:United States,Patent US0006267381B1[P].2001-07-31.
    [9]
    Nakane H, Maekawa A,Akita E,et al.The development of high performance leaf seals,ASME Paper GT2002-30243[R].Berlin:ASME,2002.
    [10]
    Grondahl C M, Dudley J C.Film riding leaf seals for improved shaft sealing,ASME Paper GT2010-23629[R].Berlin:ASME, 2010.
    [11]
    Jahn I H J, Owen A K,Gillespie D.Negative stiffness in gas turbine leaf seals,ASME Paper GT2011-46483[R].Berlin:ASME, 2011.
    [12]
    梁亚坤,王之栎, 王伟.柔片式密封泄漏量流动的数值仿真分析[J].航空动力学报,2013,28(9):1975-1979. Liang Y K,Wang Z L,Wang W.Numerical simulation and analysis of leaf leakage flow[J].Journal of Aerospace Power,2013,28(9):1975-1979(in Chinese).
    [13]
    王福军. 计算流体动力学分析——CFD软件的原理与应用[M].北京:清华大学出版社,2004:10-11. Wang F J.Computational fluid dynamics analysis:Principle and application of CFD software[M].Beijing:Tsinghua University Press,2004:10-11(in Chinese).
    [14]
    沈心敏,闻英梅, 孙希桐,等.摩擦学基础[M].北京:北京航空航天大学出版社,1988:57-59. Shen X M,Wen Y M,Sun X T,et al.Tribology foundation[M].Beijing:Beihang University Press,1988:57-59(in Chinese).
    [15]
    Patankar S V. 传热与流体流动的数值模拟[M].张政,译.北京:科学出版社,1984:130-157. Patankar S V.Numerical heat transfer and fluid flow[M].Translated by Zhang Z.Beijing:Science Press,1984:130-157(in Chinese).
    [16]
    徐广州,马纲, 沈心敏.气体雷诺方程数值方法比较和压场的讨论[C]//2006全国摩擦学学术会议——纪念摩擦学40周年会议论文集.哈尔滨:中国机械工程学会摩擦学分会,2006:128-130. Xu G Z,Ma G,Shen X M.Comparison of numerical method for gas Reynolds equation and discussion of pressure field[C]//Proceedings of Symposium on Tribology in 2006:40th Anniversary of Tribology.Harbin:Tribology Institute of Chinese Mechanical Engineering Society,2006:128-130(in Chinese).
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views(753) PDF downloads(532) Cited by()
    Proportional views
    Related

    Copyright © Journal of Beijing University of Aeronautics and Astronautics

    Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn

    Supported by: Beijing Renhe Information Technology Co., Ltd.    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return