留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

考虑刷丝变形的刷式密封流场特性与力学特性流固耦合研究

孙丹 刘宁宁 胡广阳 艾延廷 王克明

孙丹, 刘宁宁, 胡广阳, 艾延廷, 王克明. 考虑刷丝变形的刷式密封流场特性与力学特性流固耦合研究[J]. 航空动力学报, 2016, 31(10): 2544-2553. doi: 10.13224/j.cnki.jasp.2016.10.031
引用本文: 孙丹, 刘宁宁, 胡广阳, 艾延廷, 王克明. 考虑刷丝变形的刷式密封流场特性与力学特性流固耦合研究[J]. 航空动力学报, 2016, 31(10): 2544-2553. doi: 10.13224/j.cnki.jasp.2016.10.031
SUN Dan, LIU Ning-ning, HU Guang-yang, AI Yan-ting, WANG Ke-ming. Fluid-structure interaction investigation on the flow field and mechanical characteristic in brush seals with bristle deflections[J]. Journal of Aerospace Power, 2016, 31(10): 2544-2553. doi: 10.13224/j.cnki.jasp.2016.10.031
Citation: SUN Dan, LIU Ning-ning, HU Guang-yang, AI Yan-ting, WANG Ke-ming. Fluid-structure interaction investigation on the flow field and mechanical characteristic in brush seals with bristle deflections[J]. Journal of Aerospace Power, 2016, 31(10): 2544-2553. doi: 10.13224/j.cnki.jasp.2016.10.031

考虑刷丝变形的刷式密封流场特性与力学特性流固耦合研究

doi: 10.13224/j.cnki.jasp.2016.10.031
基金项目: 

国家自然科学基金(51675351);辽宁省自然科学基金(20150220113);航空科学基金(20140454)

详细信息
    作者简介:

    孙丹(1981-),男,辽宁丹东人,副教授,博士,主要从事旋转机械密封与滑动轴承流体激振研究.

  • 中图分类号: V231;TK263

Fluid-structure interaction investigation on the flow field and mechanical characteristic in brush seals with bristle deflections

  • 摘要: 应用双向流固耦合与动网格技术,建立了考虑刷丝变形的刷式密封流场与力学特性双向流固耦合瞬态三维求解模型.首先应用悬臂梁理论建立了刷丝的力学理论模型,将该流固耦合方法计算结果分别与理论模型和实验结果相互验证,在此基础上,分析了刷式密封的流场特性、刷丝的变形规律与应力特性以及刷式密封的滞后特性.研究结果表明:刷丝在气流力作用下会产生摆振运动,刷丝根部所受的应力也随着刷丝摆振运动而呈振荡变化;刷丝变形增大了刷丝与转子面间隙导致密封泄漏量增大,随着刷丝排数的增加,泄漏量先迅速下降,然后下降速度趋缓,最后趋于稳定;刷式密封随着末排刷丝与后挡板轴向间隙的增大,后挡板处相对压力系数逐渐降低,增加末排刷丝与后挡板的轴向间隙可有效降低滞后效应.

     

  • [1] 王之栋,梁小峰.刷式密封二维模型数值计算[J].航空动力学报,2008,23(8):1461-1465. WANG Zhili,LIANG Xiaofeng.Two-dimensional model mathematical simulation of brush seals[J].Journal of Aerospace Power,2008,23(8):1461-1465.(in Chinese)
    [2] Franceschini G,Jones T V,Gillespie D R H.Improved understanding of blow-down in filament seals[R].ASME Paper GT2008-51197,2008.
    [3] 陈春新,邱波,李军,等.刷式密封滞后特性的数值研究[J].西安交通大学学报,2011,45(5):36-41. CHEN Chunxin,QIU Bo,LI Jun,et al.Numerical investigations on the hysteresis characteristics of brush seals[J].Journal of Xi'an Jiaotong University,2011,45(5):36-41.(in Chinese)
    [4] Base P.Hysteresis and bristle stiffening effects in brush seal[J].Journal of Propulsion and Power,2000,10(4):569-575.
    [5] Chew J W,Hogg S I.Porosity modeling of brush seal[J].Journal of Tribology,1997,119(4):769-775.
    [6] 邱波,李军.刷式密封流动与传热及力学特性的研究进展[J].热力透平,2013,42(3):141-149. QIU Bo,LI Jun.A review of flow and heat transfer,mechanical characteristics of brush seals[J].Thermal Turbine,2013,42(3):141-149.(in Chinese)
    [7] 何立东,袁新.刷式密封研究进展[J].中国电机工程学报,2001,21(12):29-53. HE Lidong,YUAN Xin.The advance in the investegation of brush seal[J].Proceedings of the CSEE,2001,21(12):29-53.(in Chinese)
    [8] 王之栎,王宗根.航空发动机刷式密封技术发展与展望[J].润滑与密封,2005(5):203-209. WANG Zhili,WANG Zonggen.Development and prospect of brush seal in aero-engine[J].Lubrication Engineering,2005(5):203-209.(in Chinese)
    [9] Dogu Y.Investigation of brush seal flow characteristics using bulk porous medium approach[J].Journal of Engineering for Gas Turbines and Power,2005,127(1):136-144.
    [10] 黄学民,史伟,王洪铭.刷式密封泄漏流动的多孔介质数值模型[J].航空动力学报,2000,15(1):56-58. HUANG Xuemin,SHI Wei,WANG Hongming.Porous medium leakage flow model of brush seal[J].Journal of Aerospace Power,2000,15(1):56-58.(in Chinese)
    [11] LI Jun.The effects of clearance sizes on labyrinth brush seal leakage performance using a Reynolds-averaged Navier-Stokes solver and non-darcian porous medium model[J].Power and Energy,2009,223(8):953-964.
    [12] Lelli D,Chew J W.Combined 3D fluid dynamics and mechanical of brush seal[J].Journal of Tubomachinery,2006,128(1):188-195.
    [13] 张艾萍,张帅.低滞后刷式密封泄漏流动数值模拟及结构优化[J].润滑与密封,2015(2):67-72. ZHANG Aiping,ZHANG Shuai.Numerical simulation on leakage flow characteristics and optimization on structure of low hysteresis brush seal[J].Lubrication Engineering,2015(2):67-72.(in Chinese)
    [14] 迟佳栋,王之栎.前板结构对低滞后刷式密封性能影响因素分析[J].航空动力学报,2012,27(8):1902-1906. CHI Jiadong,WANG Zhili.Analysis of front plates effect on low hysteresis brush seal[J].Journal of Aerospace Power,2012,27(8):1902-1906.(in Chinese)
    [15] 宗兆科.动压式指尖密封工作状态及其影响的流固耦合分析[J].航空动力学报,2010,25(9):2156-2162. ZONG Zhaoke.Analysis of fluid solid interaction of hydrodynamic finger seal's working state and its influence[J].Journal of Aerospace Power,2010,25(9):2156-2162.(in Chinese)
    [16] 白花蕾,吉洪湖,纪国剑,等.指尖密封泄漏特性的实验研究[J].航空动力学报,2009,24(3):532-535. BAI Hualei,JI Honghu,JI Guojian,et al.Experimental investigation on leakage characteristics of finger seal[J].Journal of Aerospace Power,2009,24(3):532-535.(in Chinese)
    [17] 陈春新,李军,丰镇平.刷式密封刷丝束与转子接触力的数值研究[J].西安交通大学学报,2010,44(7):23-27. CHEN Chunxin,LI Jun,FENG Zhenping.Numerical investigation into bristle-rotor contact force of brush seals[J].Journal of Xi'an Jiaotong University,2010,44(7):23-27.(in Chinese)
    [18] 刘占生,叶建槐.刷式密封接触动力学特性研究[J].航空动力学报,2002,17(5):636-640. LIU Zhansheng,YE Jianhuai,FENG Zhenping.Research on structural dynamic characteristics of brush seals[J].Journal of Aerospace Power,2002,17(5):636-640.(in Chinese)
    [19] 刘鸿文.材料力学[M].北京:高等教育出版社2008.
    [20] 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-.
    [21] Yakhot V.Renormalization group analysis of turbulence:basic theory[J].Journal of Scientific Computing,1986,1(1):3-51.
    [22] 张小伟,王延荣.涡轮机械叶片的流固耦合数值计算方法[J].航空动力学报,2009,24(7):1622-1626. ZHANG Xiaowei,WANG Yanrong.Numerical method for fluid-structure interaction in turbomachinery bladings[J].Journal of Aerospace Power,2009,24(7):1622-1626.(in Chinese)
    [23] 钱若军,董石麟.流固耦合理论研究进展[J].空间结构,2008,14(1):4-15. QIAN Ruojun,DONG Shilin.Advances in research on fluid-structure interaction theory[J].Spatial Structures,2008,14(1):4-15.(in Chinese)
    [24] 陶海亮,朱阳历,郭宝亭,等.压气机叶片流固耦合数值计算[J].航空动力学报,2012,27(5):1055-1060. TAO Hailiang,ZHU Yangli,GUO Baoting,et al.Numerical simulation of aeroelastic response in compressor based on fluid-structure coupling[J].Journal of Aerospace Power,2012,27(5):1055-1060.(in Chinese)
    [25] Turner M T,Chew J W,Long C A.Experimental investigation and mathematical modelling of clearance brush seal[R].ASME Paper GT1997-282,1997.
  • 加载中
计量
  • 文章访问数:  830
  • HTML浏览量:  0
  • PDF量:  567
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-09-09
  • 刊出日期:  2016-10-28

目录

    /

    返回文章
    返回