【摘要】 某战术导弹高马赫数大迎角蒸汽屏流动显示和测力试验先后在中国空气动力研究与发展中心0.6m跨超声速风洞中进行,本文给出了M数为0.8、2.0、4.0,模型迎角为20°、30°、40°时的部分结果。结果表明:模型在大迎角下出现十分复杂的涡系图像;随着M数或迎角的增加,涡的尺寸及其离弹身的高度都增大;当模型状态对称时,流动图像基本上是对称的,而当模型状态不对称时,流动图像也不对称。测力结果与流动显示图像结果具有较好的一致性。更多还原

【Abstract】 The vapor screen visualization over the model and measure force test of tactical missile was conducted in the 0.6m transonic/supersonic wind tunnel of CARDC at Mach number 0.8, 1.75, 2.0, 4.0 and angles of attack 20°,30°,40°. The results show that complicated vortex patterns appear over the model at high angles of attack. These vortices grow in size and move a little further away from the body when Mach numbers or angles of attack increase. The vortex patterns are symmetric when the model is symmetric and asymmetric when the model is asymmetric. The result of vapor screen (visualization) is in keeping with that of measure force.更多还原