基于相变与真实气体模型的环形蒸汽引射器数值模拟研究  

Simulation Study of Annular Steam Ejector Based on Phase Change Model and Real Gas Model

作　　者：吴薇梵 王占林[1,2] 孔凡超 刘瑞敏[1,2] 张家仙 Wu Wei-fan;Wang Zhan-lin;Kong Fan-chao;Liu Rui-Min;Zhang Jia-xian(Beijing institute of Aerospace Testing Technology,Beijing,100074;Beijing Engineering Research Center of Aerospace Testing Technology and Equipment,Beijing,100074)

机构地区：[1]北京航天试验技术研究所,北京100074 [2]北京市航天试验技术与装备工程技术研究中心,北京100074

出　　处：《导弹与航天运载技术》2019年第5期64-69,共6页Missiles and Space Vehicles

摘　　要：为对某型上面级发动机环形蒸汽引射器零二次流流场进行研究,采用数值模拟方法,分析数值模拟模型对计算结果的影响,并与试验结果进行对比。结果表明:理论计算值与试验结果相差较大,数值模拟计算精度较高,引入的模型越接近真实情况,计算结果精度越高。其中,相变模型的影响大于真实气体模型,组分输运模型和冻结流模型的影响差别很小。In order to study the supersonic annular ejector in zero-secondary flow, numerical simulation is applied to analyze the influences of numerical simulation models on calculation accuracy. The results of numerical simulation are compared with the experimental results. The conclusions show that the theoretical calculation results are quite different from the experimental results, and the accuracy of numerical simulation calculation is higher than theoretical calculation. The more the models are closed to the real situation, the higher the accuracy of the numerical simulation calculation results is. Among them, the influence of phase change model is greater than that of real gas model, and the difference between component transport model and frozen flow model is small.

关 键 词：超声速环形蒸汽引射器 数值模拟 凝结相变模型 真实气体 

分 类 号：V430[航空宇航科学与技术—航空宇航推进理论与工程]