绕方柱类凸起物分离流研究  

Investigation of the Separated Flow over Rectangular Obstacles

作　　者：李素循[1] 陈永康[1] 倪招勇[1] 

机构地区：[1]北京空气动力研究所,北京100074

出　　处：《空气动力学学报》2000年第z1期60-66,共7页Acta Aerodynamica Sinica

基　　金：国防预研基金;国家自然科学基金

摘　　要：本文发表了一组物面上按装方形凸起物引起流动分离的试验研究结果。全部试验在高超声速来流（Ｍ＝５）条件下完成，流场中的方形凸起物在改变几何高度时，引起激波与边界层干扰流场的形态与物面压力分布规律的改变，说明方形凸起物的高度参数Ｈ／Ｄ在不同的范围内，对流场的影响不同。上述结果给出方形凸起物对应分离流场的特点，界定了竖直柱干扰区的分离边界与压力峰值。The experimental results are presented in this paper on separated flow which was induced by a set of rectangular cylinders mounted on the wall. All tests were carried out in hypersonic flow (M=5), The interactive flowfield of shock wave / boundary layer and pressure distributions were changed with the increasing height scale of the obstacle at a limited range. It showed that the effects of parameter H/D at varied ranges on the features of flowfield are different. The characteristic of the separated flow over rectangular cylinders is described. The separated boundary and the peak value of pressure in interactive region are indicated for perpendicular cylinder.

关 键 词：分离流 高超声速 激波/边界层干扰 

分 类 号：V211.1[航空宇航科学与技术—航空宇航推进理论与工程]