山东航空学院学报

为了提高氢氧化钠、碳酸钠等碱液对氧碘激光器尾气中氯气、碘蒸气的吸收率，采用离散相模型（DPM）与湍流模型相结合的数值仿真方法，研究了喷嘴喷射方向、喷雾粒径大小及喷雾锥角等参数对系统总体喷雾效果的影响规律，并开展了部分试验验证。研究表明：以喷嘴下游某截面的喷雾颗粒分布效果为考核指标，在相同的工况条件下，喷嘴的喷雾锥角越大，喷雾粒径越小，下游的喷雾颗粒分布效果越好；喷嘴的喷射方向明显影响下游的喷雾颗粒分布，其中逆气流喷射效果最优。

To enhance the absorption rate of chlorine gas and iodine vapor in the exhaust gas of oxygen-iodine laser by sodium hydroxide,sodium carbonate and other alkaline solutions,a numerical simulation method combining DPM(Discrete Phase Model)and turbulence models were adopted to investigate the influence of parameters such as the nozzle spray direction,spray droplet size and spray cone angle on the system performance,and partial experimental verification was carried out.The research shows that,taking the spray particle distribution effect at a certain cross-section downstream of the nozzle as the evaluation index,under the same working conditions,the larger the spray cone angle of the nozzle and the smaller the spray droplet size,the better the spray particle distribution effect downstream;the nozzle spray direction significantly affects the spray particle distribution downstream,among which the reverse gas flow spray has the best effect.The research results provide strong support for the design of subsequent experimental schemes for the exhaust gas treatment of oxygen-iodine lasers.