国防科技大学学报2011，Vol.33Issue(2)：38-43,6.
HF化学激光器燃烧室中燃料配比的数值分析
Numerical Study of Compositions Proportioning in Combustor of HF Chemical Laser
靳冬欢 1刘文广 1陈星 1陆启生1
作者信息
- 1. 国防科技大学,光电科学与工程学院,湖南,长沙,410073
- 折叠
摘要
Abstract
Chemical equilibrium compositions,total temperature and total pressure of HF chemical laser combustor for NF3-D2-He reaction system were calculated by combining minimu Gibbs' free energy method and mass flux conservation principle. Mole flux of F atom as a new parameter that can be used to express yield oF atom was presented. The effect of changing fuels' mass flow rates on combustor's characteristics was analyzed with emphasis. When the composition in combustor was maintained constant,increasing of mass fiow rate of Fatom and total pressure of combustor was in proportion to the increasing of total mass fiow rate.Changing of total pressure had no obvious impact on adiabatic flame temperature, degree of F2 dissociation, and mole fraction of F atom. The changing of mass flow rates of NF3 or D2 was able to adjust the oxidizer excess factor. In comparison with changing mass flow rate of D2,changing mass flow rate of NF3could acquire much higher mole fraction and mole flux of F atom,much smaller fluctuating amplitude of combustor,s total pressure.Increasing mass fiow rate of He decreased adiabatic flame temperature and mole fraction of Fatom observbly.Whereas degree of F2dissociation and mole fiux of F atom maintained a high level still when prinary diluent ratio was less than 15.关键词
化学激光器/燃烧室/数值模拟/燃料配比Key words
chemical laser/comnustor/numerical simulation/compositions propotioning分类
通用工业技术引用本文复制引用
靳冬欢,刘文广,陈星,陆启生..HF化学激光器燃烧室中燃料配比的数值分析[J].国防科技大学学报,2011,33(2):38-43,6.
