航空发动机轴承腔油气两相流型的一个判断准则

刘曼利; 陈国定; 张永红; 苏华

航空发动机轴承腔油气两相流型的一个判断准则

1.
西北工业大学机电学院,西安 710072

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:
刘曼利(1986-)，硕士研究生，研究方向为航空发动机润滑系统设计，liumanli10@163.com;陈国定(联系人)，教授，博士生导师，gdclien@nwpu.edu.cn

刘曼利(1986-)，硕士研究生，研究方向为航空发动机润滑系统设计，liumanli10@163.com;陈国定(联系人)，教授，博士生导师，gdclien@nwpu.edu.cn

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出版历程
- 收稿日期: 2011-09-17
- 刊出日期: 2015-06-10

A Criterion of the Oil/Gas Two-phase Flow Pattern in Aeroengine Bearing Chamber

1.
School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an 710072

摘要

摘要: 基于流型进行航空发动机轴承腔油气两相润滑分析是一个有潜力的研究途径,通过构建轴承腔油气两相流型与结构工况的关系,形成轴承腔油气两相流型的判断准则是其中重要的基础工作。借助描述轴承腔油气两相流的流型判别参数,构建轴承腔油气两相流型与结构工况的关联关系,提出轴承腔油气两相流型的判断准则,相关的轴承腔油气两相流试验现象支持了这一准则。研究工作实现了根据轴承腔结构工况条件预估轴承腔油气两相流型的途径,有助于基于流型分类进行轴承腔润滑分析和换热设计。
- 发动机 /
- 轴承腔 /
- 油气两相流 /
- 流型 /
- 判断准则
Abstract: It is a potential method of reseach on two-phase oil/gas flow lubrication in aeroengine bearing chamber based on flow pattern classification,in which the identification to oil/gas two-phase flow pattern in bearing chamber is an important work.Based on the relationships between the two-phase oil/gas flow pattern and the match of geometry and operating condition in bearing chamber relying on nondimensional parameters and mean splashing parameter,a new method was proposed to identify flow pattern of oil/gas two-phase flow.The results of two-phase oil/gas flow pattern identification by the present method agreed well with the former experimental results.The present work realized evaluation of two-phase flow pattern according to the geometry and operating condition in bearing chamber,and it is conducive to analyzing two-phase oil/gas flow lubrication and designing heat transfer.
- engine /
- bearing chamber /
- oil/air two-phase /
- flow pattern /
- determination criterion

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参考文献(15)

[1]	Wittig S,Glahn A,Himmelsbach J. Influence of high rotational speeds on heat transfer and oil film thickness in aero-engine bear-ing chamber[J].Journal of Engineering for Gas and Tur-bines and Power,1994,(02):395-401.
[2]	Glahn A,Wittig S. Two-phase air/oil flow in aero-engine bearing chambers assessment of an analytical prediction method the inter-nal wall heat transfer[J].International Journal of Rotating Machinery,1999,(03):155-165.
[3]	Busam S,Glahn A,Wittig S. Internal bearing chamber wall heat transfer as a function of operating conditions and chamber geome-try[J].Journal of Engineering for Gas Turbines and Pow-er,2000,(02):314-320.
[4]	Gorse P. Influence of operating condition and geometry on the oil film thickness in aeroengine bearing chambers[J].Journal of Engineering for Gas Turbines and Power,Transactions of the ASME,2006,(01).
[5]	Glahn A. Feasibility study on oil droplet flow investigations inside aero Engine bearing chambers-PDPA techniques in com-bination with numerical approaches[J].Journal of Engineering for Gas Turbines and Power,Transactions of the ASME,1996,(04).
[6]	Glahn A. Droplet generation by disintegration of oil films at the rim of rotating disk[J].Journal of Engineering for Gas Tur-bines and Power Transactions of the ASME,2002,(01).
[7]	Farral M,Simmons K,Hibberd S. A numerical model for oil film flow in an aeroengine bearing chamber and comparison experi-mental data[J].Journal of Engineering for Gas Turbines and Power,Transactions of the ASME,2006,(01).
[8]	Farral M. The effect of initial injection conditions on the oil droplet motion in a simplified bearing chamber[J].ASME Journal of Engineering Gas Turbines Power,2008,(01).
[9]	张凤娟. 基于神经网络的航空发动机轴承腔气液两相流流型辨识方法研究[J].润滑与密封,2005,(02).
[10]	吴吴天,陈国定. 轴承腔油气两相泡状流动的数值研究[J].机械工程学报,2008,(09):70-75.
[11]	刘亚军. 航空发动机轴承腔油膜流动及油气两相流型特征分析[D].西安:西北工业大学,2010.
[12]	王军. 航空发动机轴承腔油滴运动及油膜形成研究[D].西安:西北工业大学,2010.
[13]	Mundo Ch. Droplet wall collisions:experimental studies of the deformation and breakup process[J].International Journal of Multiphase Flow,1995,(02):151-173.
[14]	Lefebvre A. Atomization and Sprays[M].Hemisphere,Wash-ington,D C,1983.
[15]	Gorse P. 3D-LDA Measurements in an Aero-engine Bearing Chamber[ASME Paper,GT2003-38376] [R].