中国激光, 2010, 37 (8): 1967, 网络出版: 2010-08-13   

两步燃烧法应用于气膜冷却式增益发生器流场数值模拟研究

Numerical Study of Two-Step Combustion′s Application in Gas Film Cooling Gain Generator
作者单位
国防科学技术大学 光电科学与工程学院定向能技术研究所,湖南 长沙 410073
摘要
研究了将分别应用在连续波DF/HF化学激光器增益发生器上的气膜冷却方式和在燃烧室中的两步燃烧方式相结合的方式,这可通过转移部分主稀释剂至主喷管收缩段注入来实现。通过数值模拟方法对该应用下光腔内流场进行分析,结果显示谱线小信号增益系数有小幅增大,但两步燃烧方式较高的燃烧效率没有显著体现,且高温气流对燃烧室提出更高要求。通过增加氧化剂过量系数可降低燃烧室总温,且增益系数有所增大。
Abstract
Gas film cooling,for protecting the gain generators,and two-step combustion method,for improving combustion efficiency,were applied together to continuous wave DF/HF chemical laser. Portion of the main diluent-helium was transferred to inject at the converging section of the primary nozzle. The flowfield in cavity was numerically simulated and the results showed that spectra′s small signal gain had a small amplitude increase. The results did not exhibit high combustion efficiency as that in traditional two-step combustion method,and the high temperature gas flow demanded the combustion chamber to reach a much higher level. The total temperature could be lowered through increasing oxidizing gas flow and the gain coefficient was increased.
参考文献

[1] 王红岩,袁圣付,李强 等. 用于大气吸收测量的小型电激励连续波DF/HF选线化学激光器[J]. 中国激光,2008,35(7):997-1000

    Wang Hongyan,Yuan Shengfu,Li Qiang et al.. A discharge driven continuous wave single line DF/HF chemical laser for atmospheric absorption measurement[J]. Chinese J. Lasers,2008,35(7):997-1000

[2] 闫宝珠,袁圣付,陆启生 等. 功率提取对连续波DF化学激光器腔压的影响[J]. 中国激光,2008,35(2):211-215

    Yan Baozhu,Yuan Shengfu,Lu Qisheng et al.. Effect of output power on the pressure of cavity in continuous wave DF chemical lasers[J]. Chinese J. Lasers,2008,35(2):211-215

[3] . K. Rebone,I. A. Fedorov,P. Yu et al.. Characteristics of a cw chemical HF laser operating by using a new oxidising-gas production technique[J]. Quantum Electron., 2004, 34(9): 795-800.

[4] . K. Rebone,I. A. Fedorov,P. Yu et al.. Optimisation of characteristics of a chemical HF laser operating by using a new method for oxidising-gas production[J]. Quantum Electron., 2006, 36(12): 1155-1160.

[5] W. R. Warren,N. Cohen. NF3 Combustor for Cylindrical Laser[P]. United States Patent:4650416,1987

[6] 李兰,华卫红,袁圣付 等. 连续波DF/HF化学激光器收缩段氦气膜注入式新型喷管的理论研究[J]. 中国激光,2009,36(2):362-366

    Li Lan,Hua Weihong,Yuan Shengfu et al.. Theoretical investigation of nozzle with helium film injection at the converge section in CW DF/HF chemical laser[J]. Chinese J. Lasers,2009,36(2):362-366

[7] Fluent incorporated. FLUENT User Manual. 2001

[8] 袁圣付. 连续波DF/HF化学激光器新型增益发生器的理论设计[D]. 长沙:国防科技大学,2002

    Yuan Shengfu. Theoretical Design of Latest Gain Generator for Continuous Wave DF/HF Chemical Lasers[D]. Changsha:National University of Defense Technology,2002

李兰, 袁圣付, 华卫红, 姜宗福, 闫宝珠. 两步燃烧法应用于气膜冷却式增益发生器流场数值模拟研究[J]. 中国激光, 2010, 37(8): 1967. Li Lan, Yuan Shengfu, Hua Weihong, Jiang Zongfu, Yan Baozhu. Numerical Study of Two-Step Combustion′s Application in Gas Film Cooling Gain Generator[J]. Chinese Journal of Lasers, 2010, 37(8): 1967.

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