摘要
该文以推力矢量发动机的燃气舵绕流场为研究对象,采用数值分析技术,确定了数值模拟的流动方程以及适合的RNG k-ε湍流模型,对包含舵基、舵片和发动机壳体在内的区域进行了计算。结果揭示了舵基、舵片附近的流动状况和特点,所得结论可以为舵基、舵片的结构设计、安装方式以及控制机构设计提供有益借鉴。通过与试验现象对比,反映出数值计算的结果在一定程度上可以满足工程分析的需要。
The circumferential flow field of the thrust vector motor et vane is studied by the numerical analysis. The simulation flow equations and RNG k - ε turbulence model were set up. The calculated results from the vane base, vane patch , and motor shell present the flow status and properties of the flow around the vane base and vane patch. The results are helpful to the structure design, installation and control design of et vane. The comparision with the experimental results shows that the mathematical simulation satisfies the need of the engineering analysis.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2005年第5期532-535,共4页
Journal of Nanjing University of Science and Technology
关键词
推力矢量
燃气舵
数值模拟
绕流场
thrust vector
et vane
numerical simulation
circumferential flow field
