摘要
本文以高推重比涡扇发动机为研究对象，利用所建立的以变几何部件特性为基础的变几何加力涡扇发动机性能模型，详细计算和分析了风扇和高压压气机静子叶片角度、高压和低压涡轮导向器喉道面积４个几何参数的调节对发动机性能的影响。结果表明，在本文计算条件下调节风扇静子叶片角度对发动机性能有显著影响，调节其它３个参数对性能影响不大，但可在控制主要部件在其高效率工作点方面发挥作用。
A model based on the characteristic maps of the variable geometric components is applied to performance estimation of Variable Geometry turborfan Engine (VGE).The influences of readjusting the geometric parameters,such as the variable guide vanes of fan and compressor,and variable turbine throat areas,on the installed and uninstalled performance have been researched for a VGE with high thrust-weight ratio.The results show that a significant influence on the engine performance is exerted by shifting the fan variable vanes,but a less influence by adjusting the other three parameters under the calculation conditions selected.But if the four parameters could be readjusted coordinatively,the components will be controlled with high efficiency to ensure the high performance of VGE.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1999年第1期35-38,共4页
Journal of Aerospace Power
