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为进一步深入研究喷嘴结构参数对气-气掺混燃烧特性的影响,针对氢向氧斜喷带撞击角度的气-气喷嘴开展了实验和数值模拟.实验研究了撞击角度对燃烧效率和燃烧室壁面温度的影响,数值仿真分析了撞击角度对喷注面板和氧喷嘴管壁温的影响.结果表明:随着氢向氧撞击角度的增大,推进剂燃烧效率、燃烧室壁面和氧喷嘴出口管壁面热载降低;氢向氧撞击角度的引入,增大了喷注面板热载.
In order to further study the influence of nozzle structure parameters on the gas-air mixture combustion characteristics, experiments and numerical simulations were carried out for the gas-air nozzles with hydrogen oblique angle of incidence to the oblique angle.The experiments were carried out to study the effect of impact angle on combustion efficiency and combustion chamber The influence of impact angle on the wall temperature of spray nozzle and oxygen nozzle tube was analyzed by numerical simulation.The results show that with the increase of hydrogen collision angle to oxygen, the combustion efficiency of propellant, combustion chamber wall and oxygen nozzle outlet Tube wall heat load decreased; the introduction of hydrogen to the impact of oxygen, increasing the injection panel heat load.