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柔片式密封泄漏流动的数值仿真分析

梁亚坤 王之栎 王伟

梁亚坤, 王之栎, 王伟. 柔片式密封泄漏流动的数值仿真分析[J]. 航空动力学报, 2013, 28(9): 1975-1981.
引用本文: 梁亚坤, 王之栎, 王伟. 柔片式密封泄漏流动的数值仿真分析[J]. 航空动力学报, 2013, 28(9): 1975-1981.
LIANG Ya-kun, WANG Zhi-li, WANG Wei. Numerical simulation and analysis of leaf seal leakage flow[J]. Journal of Aerospace Power, 2013, 28(9): 1975-1981.
Citation: LIANG Ya-kun, WANG Zhi-li, WANG Wei. Numerical simulation and analysis of leaf seal leakage flow[J]. Journal of Aerospace Power, 2013, 28(9): 1975-1981.

柔片式密封泄漏流动的数值仿真分析

Numerical simulation and analysis of leaf seal leakage flow

  • 摘要: 针对柔片式密封的流场和密封性能及其影响因素进行研究,建立了密封区域流体动力学计算模型,对密封间隙内流场的速度、压力分布和泄漏量进行了计算,分析了工况和结构参数对泄漏量的影响趋势.分析表明:密封泄漏量随密封压差的增大呈线性增长趋势,而随转子转速的增加变化不大;柔片宽度由3mm增加至7mm,系统泄漏量降低了40%左右,而柔片长度由12mm增加至16mm,泄漏量仅增加8%左右;前/背板与柔片或转子间间距的增大将使泄漏量上升,且前板与转子间设计间距对泄漏量相对影响较大,随其增加,泄漏量最高可增加16%;柔片末端楔形区域对泄漏量及对转子作用力均产生影响.

     

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出版历程
  • 收稿日期:  2012-09-11
  • 刊出日期:  2013-09-28

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