超/跨音风扇气动设计体系有关流动模型改进探讨  

A MODIFIED MODEL OF SUPERSONIC/TRANSONIC FAN AERODYNAMIC DESIGN SYSTEM

作　　者：赵拥军[1] 邢秀清[1] 周盛[1] 

机构地区：[1]北京航空航天大学

出　　处：《航空动力学报》1999年第1期15-18,共4页Journal of Aerospace Power

摘　　要：当前超／跨音风扇准三维气动设计体系中，二维气动设计与三维流场分析在模型上不匹配。为加强二者之间的关联，提出了气动设计体系三角形概念。作为其实现方法的一部分，提出了内部气流脱轨角及其偏差作为定量指标，以对设计流场进行评价，并对下一轮设计进行指导。根据有限算例，探讨了内部以气流脱轨角及其偏差作为定量准则的可能性。The two-dimensional aerodynamic design and the three-dimensional flowfield analysis,which are two of the three main parts of supersonic/transonic fan aerodynamic design system,do not match in flow model.Therefore,a triangular model of aerodynamic design system is put forward to improve the design system.As a part of its implementation a quantitative indicator is provided which uses the inner flow deviation angle and its deviation to evaluate quantitatively the designed flowfield and to guide the next design iteration.The possibility of developing the indicator into a criteria is also discussed.

关 键 词：跨音速流动 风扇 气动特性 流动模型 航空发动机 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]