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航空发动机轴承腔气相速度场数值模拟

陈薄 陈国定 张永红 孙恒超

陈薄, 陈国定, 张永红, 孙恒超. 航空发动机轴承腔气相速度场数值模拟[J]. 机械科学与技术, 2012, 31(8): 1241-1246.
引用本文: 陈薄, 陈国定, 张永红, 孙恒超. 航空发动机轴承腔气相速度场数值模拟[J]. 机械科学与技术, 2012, 31(8): 1241-1246.
Chen Bo, Chen Guo-ding, Zhang Yong-hong, Sun Heng-chao. Numerically Simulating Airflow Field Inside Aeroengine Bearing Chamber[J]. Mechanical Science and Technology for Aerospace Engineering, 2012, 31(8): 1241-1246.
Citation: Chen Bo, Chen Guo-ding, Zhang Yong-hong, Sun Heng-chao. Numerically Simulating Airflow Field Inside Aeroengine Bearing Chamber[J]. Mechanical Science and Technology for Aerospace Engineering, 2012, 31(8): 1241-1246.

航空发动机轴承腔气相速度场数值模拟

基金项目: 

国家自然科学基金项目(50975233)

航空科学基金项目(20100453004)资助

详细信息
    作者简介:

    陈薄(1978-),博士研究生,研究方向为航空发动机润滑与密封,chenbo@mail.nwpu.edu.cn;陈国定(联系人),教授,博士生导师,gdchen@nwpu.edu.cn

    陈薄(1978-),博士研究生,研究方向为航空发动机润滑与密封,chenbo@mail.nwpu.edu.cn;陈国定(联系人),教授,博士生导师,gdchen@nwpu.edu.cn

Numerically Simulating Airflow Field Inside Aeroengine Bearing Chamber

  • 摘要: 考虑轴承腔密封间隙和排气孔结构,以及气相介质状态方程条件下,利用CFX软件数值计算了典型航空发动机轴承腔结构的气相流场。探讨了密封间隙和排气孔结构存在以及考虑气相介质状态方程对气相介质流动的影响,以及转子转速、进气量、轴承腔的液力直径等工况和结构参数对气相介质流动状态的影响。计算结果表明:考虑密封进气和排气孔结构以及气相介质的状态方程对气相介质流动速度分布影响较大;气相介质无量纲切向速度沿着轴承腔径向方向减小,而无量纲径向速度和轴向速度沿着径向方向变化较为复杂;转子转速、密封进气量和轴承腔液力直径对无量纲速度分布影响也较大而且很复杂。与有关文献计算结果的对比验证了本文提出的计算方法的可靠性和正确性。
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    [10] Lee C W,Palma P C,Simmons K,et al.Comparison of compu-tational fluid dynamics and particle image velocimetry data for theairflow in an aeroengine bearing chamber[J].Transactions ofthe ASME-Journal of Engineering for Gas Turbines andPower,2005,127(10):697~703
    [11] 王军,陈国定,刘亚军.腔型/旋转结构空间气相介质流动分析[J].机械设计与制造,2010,10:192~194
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出版历程
  • 收稿日期:  2011-06-29
  • 刊出日期:  2015-06-10

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