雷诺数对旋成体表面脉动压力特性的影响  

Influence of Reynolds number on the surface fluctuating pressure characteristics for rotated body

作　　者：王娜[1] 高超[1] 肖虹[1] 

机构地区：[1]西北工业大学翼型叶栅空气动力学国家重点实验室,陕西西安710072

出　　处：《飞行力学》2013年第5期455-457,共3页Flight Dynamics

基　　金：国家973计划项目资助(61355)

摘　　要：为进一步研究雷诺数对旋成体表面脉动压力特性的影响,进行了旋成体表面脉动压力测量试验。测量了沿旋成体轴向14个特征点的脉动压力,获得旋成体表面轴向测压点的脉动压力系数和声压级。最后,总结了在不同马赫数条件下,雷诺数变化对脉动压力系数和声压级的影响。In order to study the influence of the Reynolds number on the characteristics of fluctuating pressure for rotated body, test is conducted for the measurement of fluctuating pressure on the missile sur- face. Fluctuating pressures of the 14 axial feature points along the rotated body were measured, and the fluctuating pressure coefficient and the sound pressure level of the axial feature points along the model surface. Finally, this paper summarized the influence of the change of Reynolds number on fluctuating pressure coefficient and the sound pressure level at different Ma.

关 键 词：脉动压力 雷诺数 脉动压力系数 声压级 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]