在大攻角下导弹弹身的非对称绕流会导致较大的侧向力,因此控制非对称流动是非常重要的研究内容。文中主要研究了矢量喷流对导弹大攻角非对称绕流的影响。研究通过流动显示的方法选取了导弹头部非对称流动比较明显的两个截面,采用激光片光流动显示技术研究了大攻角下矢量喷流对导弹头部截面绕流的影响。试验结果表明,矢量喷流促使非对称脱体涡的涡位抬高,矢量喷流对导弹大攻角非对称绕流有一定的控制作用。

The side force of missile at high angle-of-attack is very large due to asymmetric flows, so the research of asymmetric flows control is important. In the paper, the effect of vectoring jet on asymmetric flows over missile at high angle-of-attack was discussed. Flow visualization test was used in the study. Two sections of missile's head were selected in the study since their asymmetric flows were strong in the two sections. The effect of vectoring jet on asymmetric flows over sections of missile's head at high angle-of-attack was studied by means of laser lightsheet flow visualization test. The test shows: the asymmetric flows over missile can been controlled by vectoring jet.