工况变化对涡轮燃烧射流涡流技术方案的影响  

Effect of operating condition variation on performance of turbine inter-vane burner based on jet-vortex flow

作　　者：郑海飞[1] 唐豪[2] ZHENG Hai-fei;TANG Hao(Shanghai Aircraft Design and Research Institute, Center of Airworthiness Engineering, Shanghai 201210, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

机构地区：[1]上海飞机设计研究院适航工程中心,上海201210 [2]南京航空航天大学能源与动力学院,南京210016

出　　处：《燃气涡轮试验与研究》2018年第2期41-46,共6页Gas Turbine Experiment and Research

基　　金：国家自然科学基金(NSFC51076064);江苏省"六大人才高峰"第五批高层次人才项目(2008136);江苏省普通高校研究生科研创新计划资助项目(CXLX12-0152)

摘　　要：选取二次射流流量变化和环境压力变化的工况条件,对涡轮燃烧射流涡流方案的影响进行研究。其中,二次射流流量变化时,环境压力保持101 325 Pa不变;环境压力变化时,二次射流流量保持0.014 kg/s不变。采用基于压力的隐式稳态求解器模拟涡轮内增燃燃烧室的流动与燃烧过程,并在模拟过程中应用尺度适应模拟湍流模型(SAS)。研究表明:随着二次射流流量的增加,射流涡流燃烧室内温度分布均匀化、总压损失增加、燃烧效率提高、污染物降低;随着环境压力的增大,射流涡流燃烧室内温度分布不受影响,但总压损失降低、燃烧效率提高、污染物降低。The influence of the flow rate change of the secondary jet and the change of environmental pressure on turbine inter-vane burner based on jet-vortex flow was studied. In this case, the environmental pressure remained unchanged when the secondary jet flow changed. When the environmental pressure changed, the secondary jet flow rate remained unchanged at 0.014 kg/s. The flow and combustion process of the combustion chamber in the turbine was simulated by using the pressure based implicit steady-state solver, and the scale adaptive simulation turbulence model （SAS） was applied in the numerical simulation. The results show that with the increase of secondary jet flow, the temperature distribution in the jet vortex combustion chamber is homogeneous, the total pressure loss and combustion efficiency increases, and the pollutant is reduced. With the increase of environmental pressure, the temperature distribution of jet vortex combustion chamber is not affected, but the total pressure loss is reduced, combustion efficiency is increased, and the pollutant is reduced.

关 键 词：航空发动机 涡轮内增燃 射流涡流 径向凹腔 涡轮叶片 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]