计算机工程与科学2013，Vol.35Issue(4)：14-17,4.DOI:10.3969/j.issn.1007-130X.2013.04.003
两种化学激光器副喷管结构的数值模拟
Numerical study of two types of secondary nozzle in chemical laser
摘要
Abstract
The second nozzle of the gain generator in the chemical laser provides optical cavity with chemical fuel and dilute gas, and refrigerates the main nozzle flow. Design optimization of several distribution flow pipeline levels in nozzle blade is vital for uniformization of reaction flow and cooling the nozzle blade by the secondary nozzle flow. Characteristics of the secondary nozzle were studied based on three-dimensional fluid dynamics method. Nozzle with three distribution flow pipeline level transport structure and 2SLOT were compared. Flow field uniformity of every distribution flow pipeline levels were calculated under the 1st level inlet pressure of 3atm 5 atm and 8atm. The uniformity of the nozzle with three levels distribution flow pipeline structure is better than 2SLOT nozzle at the same parameters such as area ratio of input and output surfaces and throat. The parameters of existing design of three levels distribution flow pipeline nozzle structure requires further optimization. It is useful to obtain the uniformization of reaction flow with raising the inlet pressure.关键词
化学激光器/分流管道/喷管Key words
chemical laser distribution flow pipeline/ nozzle分类
信息技术与安全科学引用本文复制引用
肖楠,华卫红,刘文广..两种化学激光器副喷管结构的数值模拟[J].计算机工程与科学,2013,35(4):14-17,4.
