【摘要】 将爆轰冲击动力学方法(DSD)的广义几何光学模型(GGO)引入二维流体力学计算编码WSU中去,得到耦合计算编码ADW,对炸药爆轰驱动飞片进行数值模拟。对两类不同尺寸和种类的爆轰装置进行了实验和数值计算,计算结果与实验结果吻合相当好。更多还原

【Abstract】 The generalized geometrical optics model for the detonation shock dynamics (DSD) has been incorporated into the two dimensional hydrocode WSU to form a combination code ADW for numerical simulation of explosive acceleration of metals. An analytical treatment of the coupling conditions at the nodes just behind the detonation front is proposed. The experiments on two kinds of explosive-flyer assemblies with different length/diameter ratio were carried out to verify the ADW calculations, where the tested explosive was HMX or TATB based. It is found that the combination of DSD and hydrocode can improve the calculation precision, and has advantages in larger meshes and less CPU time.更多还原