摘要
以某型航空发动机的超高转速离心通风器为研究对象,应用欧拉-拉格朗日方法对其内部两相流场进行数值模拟.针对不同转速、入口质量流量进行了数值计算,分析其对超高转速离心通风器压降与分离效率的影响.计算表明:超高转速下,优化旋转空心轴结构可以减小离心通风器压降,提高分离效率.
The two-phase flow field in the high speed centrifugal oil-air separator of the aero-engine was numerically simulated by the Euler-Lagrange method.Numerical calculation was applied to analyze the influences of speed and mass flow rate on pressure drop and separation efficiency in a high speed centrifugal oil-air separator.The results indicate that the structural improvement of the rotating hollow shaft has obvious influence on reducing pressure drop and increasing separation efficiency.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2016年第3期685-691,共7页
Journal of Aerospace Power
关键词
离心通风器
航空发动机
两相流
压降
分离效率
centrifugal oil-air separator
aero-engine
two-phase flow
pressure drop
separation efficiency
