激波过弯道绕山坡对三维物体的冲击效应研究

Research into impact effect on 3-D object of shock wavepassing through curved channel and surrounding hill

采用全息干涉技术在高速流态试验装置 (激波管 )上研究了激波过弯道绕山坡到达三维物体的整个过程的流场 ,还采用传感器压力测量技术对三维物体表面的压力分布进行了定量测量。结果表明 ,激波对三维物体与山坡的接合部、物体背风面及其拐角位置的影响是最大的 ;对于研究爆炸冲击波在复杂地形下对建筑物的冲击载荷有重要意义。

The flow field of shock wave passing through curved channel and surrounding hill is investigated in high speed flow state test facility(shock tube) by holographic interferometry along with the quantitative measurement of the pressure distribution on the 3 D object by transducer pressure measurement technology.The test results indicate that the effect in the flow field of shock wave is the largest at the copulation of 3 D object and hill,the object leeward surface and its corner.It is significant to research into impact effect of shock wave at the complicated landform.