一、实验装置 实验用模型燃烧室是轴对称带旋流器和一排主燃孔的燃烧室(图1),不带冷却孔和掺混乱,这种简化燃烧室流场仅受一次进气与二次进气的影响,其中旋流器沿用一种航机的,叶片数为12,扭角为42度,火焰筒壁上均匀分布六个二次进气孔。一次气和二次气分别由两条 First, the experimental device experimental model Combustion chamber is an axisymmetric cyclone and a row of the main combustion hole combustion chamber (Figure 1), without cooling holes and mixed chaos, this simplified combustion chamber flow only by a single intake And secondary air intake, which uses a cyclone aircraft, the number of blades 12, the angle of 42 degrees, the flame tube wall evenly distributed six secondary air inlet. Primary gas and secondary gas respectively by two