化学反应与饱和模型对化学氧碘激光性能的影响
Ｅffects of chemical kinetics and gain saturation model on the performance of chemical oxygeniodine laser
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摘要: 将速率方程（RE）模型与化学动力学模型相结合，讨论了增益饱和模型与化学反应系统对COIL性能的影响。流动为预混的一维模型，考虑了10种成分和21个化学反应，分析计算了未分解碘分子，激发态氧产率，水含量以及温度等因素对COIL性能的影响。计算结果表明，碘流量过多，混合和反应过程中消耗大量能量；碘流量过低，导致粒子数反转和增益过低，对于能量的提取不利。
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关键词:
- 化学氧碘激光（COIL） /
- 速率方程（RE）模型 /
- 化学动力学模型
Abstract: By combining the rate equation (RE) model with the chemical kinetics model, the effects of gain saturation models and chemical reaction systems on the performance of COIL are discussed in this paper. A premixed one-dimensional model is assumed for the flow field, and a chemical kinetics of 10 components and 21 reactions is adopted. The effects of undecomposed iodine molecular, yield of excited oxygen, content of water and temperature on the power of COIL are analyzed and calculated.The computational results show that much more energy is expanded in the processes of mixing and reaction if the flux of iodine is too much, and that much less flux of iodine results in lower gain, which is not benefit to extracting energy． -
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