近距耦合鸭式布局气动研究进展

Research advances on a close-coupled canard wing configuration

介绍了近距耦合鸭式布局的基本设计思想。从实验、数值计算两个角度对近距耦合鸭式布局气动方面的研究进展进行了综述,重点对近距耦合鸭式布局增升机理方面的研究进行了总结。并对尚待解决的问题进行了展望。

Basic design ideas are introduced on a close-coupled canard wing configuration.Comparing to ordinary configurations,a closecoupled canard wing configuration has much advantages,for instance,offering positive lift when trimming,producing vortex lift through interference of canard vortex and wing vortex, and easy to utilize several other aviation advance technology. Experimental and numerical research advance of a closecoupled canard wing configuration are reviewed, and specially the ones of the liftaugmented mechanism are emphasized. The influence mechanism of canard on wing are divided into two cases in terms of angles of attack. At middle and small angles of attack, the canard downwash on wing is dominated, wing lift is of loss; At high angles of attack, the interference of the canard vortex and wing vortex improves wing flow field and increases wing lift. As yet, numerical simulation have been developed rapidly and become important techniques of canard configuration research. Finally, some noninvolved problems and further research works are presented.