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以SPH算法为代表的无网格方法在爆轰波的数值模拟中具有明显的优势,采用SPH算法模拟高能炸药水下爆炸爆轰过程,得到了压力、速度等时历曲线.将数值模拟结果与理论和实验方法得到的结果进行了对比分析,表明SPH算法非常适宜处理高能炸药水下爆炸的极短瞬时具有大变形和高度非均匀的动力学极端情形,且求解结果已达到了较高的精度。
The meshless method represented by the SPH algorithm has obvious advantages in the numerical simulation of detonation waves. The SPH algorithm is used to simulate the underwater detonation process of high energy explosives and the pressure, velocity and other time history curves are obtained. The numerical simulation results Compared with the theoretical and experimental results, the results show that the SPH algorithm is very suitable for dealing with extreme cases of dynamical extremes with large deformations and highly nonuniformities in underwater explosions of high energy explosives, and the results have reached a high Accuracy.