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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。
In this paper, we present the results of a series of experimental studies on the flow separation caused by the loading of square bulges. All tests were performed under the condition of supersonic flow (M = 5). When the square bumps in the flow field changed the geometrical height, the changes of the flow field morphology and the pressure distribution on the object surface caused by the shock and boundary layer changes. It indicates that the height parameter H / D of the square bulge is in different range and has different influence on the flow field. The above results give the characteristics of the square bumps corresponding to the separation flow field and define the separation boundary and pressure peak of the vertical column interference area.