计算物理 ›› 2009, Vol. 26 ›› Issue (4): 541-547.

• 研究论文 • 上一篇    下一篇

流量配比对Coil增益分布影响的数值研究

吕俊明, 王春, 姜宗林   

  1. LHD, 中国科学院力学研究所, 北京 100080
  • 收稿日期:2008-03-05 修回日期:2008-05-28 出版日期:2009-07-25 发布日期:2009-07-25
  • 作者简介:吕俊明(1981-),男,陕西,博士生,从事化学反应流数值研究.
  • 基金资助:
    国家863计划项目与大连化学物理研究所基金联合资助项目

Numerical Study on Gain Distribution in COIL: Flow Rate Ratio of Primary and Secondary Flow

LV Junming, WANG Chun, JIANG Zonglin   

  1. LHD, Institute of Mechanics, CAS, Beijing 100080, China
  • Received:2008-03-05 Revised:2008-05-28 Online:2009-07-25 Published:2009-07-25

摘要: 利用三维CFD技术,通过求解层流Navier-Stokes方程与组分输运方程,对简化后的化学氧碘激光RADICL模型进行数值模拟与分析,结合10种组分和21个基元反应的化学反应模型,对COIL亚声速段横向射流情况下,不同的主副流流量配比对化学氧碘激光器性能的影响进行分析与比较.结果证明,过高或过低的碘分子浓度状态均不利于合理、可观的小信号增益系数产生.存在一个最佳流量配比范围,与之对应的工作状态下,COIL的小信号增益系数会得到显著提高.

关键词: COIL, 横向射流, 流量配比, 增益系数

Abstract: Three-dimensional CFD technology is applied in a RADICL model by solving laminar Navier-Stokes equations and transportation equations to study iodine molecule dissociation rate,iodine atom pumping rate,singlet oxygen yield rate and small signal gain at different flow rate ratio of primary and secondary flow.It is found that an appropriate flow rate ratio plays an important role in spatial distribution of the small signal gain.Rich or poor oxygen conditions go against with a proper gain.

Key words: COIL, jet in cross flow, flow rate ratio, gain

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