基于流场仿真的涡扇发动机清洗系统参数优化设计

蒋科艺; 沈伟; 李本威; 刘海峰; 马力

基于流场仿真的涡扇发动机清洗系统参数优化设计

1.
海军航空工程学院飞行器工程系,烟台 264001
2.
中国人民解放军海军海军驻沈阳地区发动机专业军事代表室,沈阳 110015

计量
- 文章访问数: 2043
- HTML浏览量: 233
- PDF量: 19
- 被引次数: 0
出版历程
- 收稿日期: 2010-02-27
- 修回日期: 2010-08-07
- 刊出日期: 2011-03-28

Parameters optimizing for a turbofan engine cleaning system using flow field simulation

1.
Department of Aerocraft Engineering, Naval Aeronautical and Aeronautical University,Yantai 264001,China
2.
Engine Military Representatives Office of Navy in Shenyang, The Chinese People's Liberation Army Navy,Shenyang 110015,China

摘要

摘要: 给出了某型涡扇发动机的清洗方式、时机及清洗系统初始设计参数;利用流场仿真验证技术,对清洗系统进行了仿真验证和参数优选,结果表明:清洗液与空气的质量百分比不大于3%时,喷入清洗液不会影响风扇的稳定工作;300μm左右的液滴用于清洗综合效果较佳;在系统其他参数相当的情况下,喷嘴喷雾锥角越大,液滴对风扇进口的径向覆盖越好;无法通过压气机流场仿真来确定喷嘴背压和清洗液流量对清洗效果的影响.
- 涡扇发动机 /
- 清洗系统 /
- 在线清洗 /
- 流场仿真 /
- 清洗效果
Abstract: An initial cleaning project was presented,including cleaning types,frequency and its design parameters for a turbofan engine.Using flow field simulation technique,the initial cleaning project was validated and its designing parameters were optimized.All these works show that:detergents injection will not affect this engine fan's stability at detergents-to-air ratios less than 3% by mass;the larger nozzle spraying angle means better droplets cover of the fan in the radial direction at equivalent other system parameters;flow field simulation of compressor can not confirm the effectiveness of the nozzle fluid pressure and detergents-to-air ratios to cleaning efficiency.
- turbofan engine /
- cleaning system /
- on-line washing /
- flow field simulation /
- cleaning efficiency

HTML

参考文献(12)

[1]	Kurz R,Brun K.Degradation in gas turbine systems[J].Journal of Engineering for Gas Turbines and Power,2001,123(1):70-77.
[2]	Meher-Homji C B,Bromley A.Gas turbine axial compressor fouling and washing //Proceedings of the Thirty-third Turbomachinery Symposium.Houston,Texas:Texas A&M University,2004:163-192.
[3]	Kurz R,Brun K.Gas turbine tutotial:maintenance and operating practices effects on degradation and life //Proceedings of the Thirty-sixth Turbomachinery Symposium.Texas:Texas A&M University,2007:173-185.
[4]	Syverud E,Bakken L E.Online water wash tests of GE J85-13[J]. Journal of Turbomachinery,2007,129(1):136-142.
[5]	Mund F C,Pilidis P.Gas turbine compressor washing:historical developments,trends and main design parameters for online systems[J].Journal of Engineering for Gas Turbines and Power,2006,128(2):344-353.
[6]	Harry M.U.S.Navy on-line compressor washing of marine gas turbine engines //Proceedings of ASME Turbo Expo.Atlanta,Georgia:ASME,1991.
[7]	Lambert P,Gorden R,Burnett M.Developments in on-line gas turbine compressor //Proceedings of Institution of Diesel and Gas Turbine Engineers 2nd Gas Turbine Conference.Milton Keynes,UK:IDGTE,2004:136-142.
[8]	Mund F C,Pilidis P.A review of online washing systems //Proceedings of ASME Turbo Expo.,2004.Vienna,Austria:ASME,2004:519-528.
[9]	Asplund P.Gas turbine cleaning upgrade (compressor wash) //ASME ASIA'97 Congress and Exhibition.Singapore:ASME,1997:105-117.
[10]	Asplund P,Hjerpe C J.A method for cleaning a stationary gas turbine unit during operation:United States,7428906 .2008-09-30.
[11]	Syverud S,Bakken L E,Langnes K,et al.Gas turbine operation offshore:on line compressor wash at peak load //Proceedings of ASME Turbo Expo.,2003.New Orleans,Louisiana:ASME,2003:17-27.
[12]	Schmidt D P,Nouar I,Senecal P K,et al.Pressure-swirl atomization in the near field .SAE Paper 1999-01-0496,1999.