研究了不同喷射位置、喷射马赫数和喷射角度的气体二次喷射混合流场的弓形激波形状。在二维矩形喷管内进行二次喷射试验 ,用纹影仪拍摄得到激波照片。将由照片换算得到的激波半径与用爆炸波理论计算的结果相比较 ,证实了爆炸波解在计算激波半径方面提供了与实验较符合的结果 The bowed shock wave shape of the mixed gas flow field was studied for different jet positions, jet Mach number and jet angle. In the two-dimensional rectangular nozzle for secondary injection test, shot with a shadow instrument to obtain shock wave photos. Comparing the shock radius converted from the photograph with the result calculated from the theory of blast wave, it is confirmed that the explosion wave solution provides more experimental results in terms of calculating the shock radius