变前掠翼气动布局纵向性能研究

发展和改进了一种变前掠翼气动布局及其设计思想,设计了集战斗和轰炸于一体的通用任务模式,并根据设计指标和翼身融合技术初步设计了变翼几何外形。采用N-S方程计算了该几何外形不同构型的纵向气动性能,分析了机翼前掠角对不同任务模式下纵向气动性能的影响。结果表明,变前掠翼气动布局可通过改变机翼前掠角来获取最佳纵向气动性能。

Longitudinal Characteristics of the Aerodynamic Configuration with Variable Forward-Swept Wing

An improved aerodynamic configuration with variable forward swept wing(VFSW) has been presented in this paper.Its design idea integrates fighting with bombing in the general mission profiles.The shape of VFSW is designed based on design guidelines and blended wing-body technique.The longitudinal characteristics of VFSW are investigated by numerical method based on N-S equations,and it's analyzed that the effect between the wing's forward-swept angle and the longitudinal characteristics in different mission profiles.The results show that the optimal longitudinal aerodynamic characteristics can be achieved by adjusting the wing's forward-swept angle.