旋流式掺混结构对SPATR补燃室性能影响仿真研究  

Simulation Research on Performance of SPATR's Afterburning Chamber with Swirl Mixing Structure

作　　者：周小旭[1] 陈志明[1] 张鑫[1] 

机构地区：[1]中国空空导弹研究院,洛阳471009

出　　处：《科学技术与工程》2017年第12期294-298,共5页Science Technology and Engineering

基　　金：河南省自然科学基金(162300410327)资助

摘　　要：基于一种SPATR补燃室入口构型,设计了旋流式掺混结构,并采用数值仿真方法对不同掺混结构作用下补燃室的掺混燃烧性能进行了对比分析。结果表明:燃气以旋转方式进入补燃室能够显著减小补燃室中心轴处的低温核心区,空气以旋转方式进入补燃室会增大补燃室的总压损失,两者以旋转方式进入补燃室均能够增强掺混燃烧效果,提升补燃室的掺混燃烧性能,双旋掺混结构对掺混燃烧性能提升效果最好。Swirl mixing structures were designed based on the inlet configuration of SPATR＇s afterburning chamber,and the mixing and combustion performance of afterburning chamber with these swirl mixing structures were analyzed and compared by numerical simulation.The results show that the fuel-gas entering the afterburning chamber in a rotating mode can decrease the low temperature core area in the center of the afterburning chamber.The air entering the afterburning chamber in a rotating mode can increase the total pressure loss of the afterburning chamber.Also,both the fuel-gas and air entering the afterburning chamber in a rotating mode can enhance the mixing and combustion performance of the afterburning chamber.Furthermore,the improvement introduced by double swirl mixing structure is better than other modes.

关 键 词：旋流 固体燃料涡轮冲压发动机 补燃室 掺混燃烧 

分 类 号：V438.6[航空宇航科学与技术—航空宇航推进理论与工程]