V形尾翼气动布局纵向力矩特性研究  

Investigation of Longitudinal Moment Characteristics of Vee Tail

作　　者：李琼云[1] 王正平[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《飞行力学》2008年第4期8-10,共3页Flight Dynamics

摘　　要：针对某无人战斗机所采用的V形尾翼布局,通过求解N-S方程的数值计算方法,得到了上反与下反V形尾翼气动布局的纵向力矩值。对比分析结果表明,上反V形尾翼由于受翼身组合体产生的下洗和速度阻滞作用,随着迎角的增加力矩曲线有上翘现象,但随着马赫数的增加而减弱;下反V形尾翼布局力矩曲线的线性度良好。Aimed at the vee tail of an UCAV, the longitudinal moments of up vee tail and down vee tail are calculated by the method of solving N-S equations. The investigations show that, because of the downwash and stagnation pressure caused by the wing-fuselage, the longitudinal moment curve of up vee tail becomes up warped as the increasing of attack angle, but the warp weakened as the increasing of Ma ; The linearity of the longitudinal moment curve of low tail is good.

关 键 词：纵向力矩 上反V形尾翼 下反V形尾翼 

分 类 号：V221[航空宇航科学与技术—飞行器设计]