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180°圆弧形钝感炸药的爆轰波传播

DOI: 10.11858/gywlxb.2013.01.019, PP. 132-136

Keywords: 爆轰冲击波动力学方法,圆弧形钝感炸药,爆轰波传播

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Abstract:

采用贴体坐标下与LevelSet方法相结合的爆轰冲击波动力学(DSD)计算方法,研究了180°圆弧形钝感炸药中非理想爆轰波的传播过程。通过数值模拟计算和实验测量的对比分析,得到了180°圆弧形炸药中爆轰波传播的一些规律:圆弧形钝感炸药可以实现定常爆轰,即在极坐标中整个爆轰波以固定角速度转动。这种定常阵面的形状和角速度与圆弧的外半径无关,定常体系依赖于圆弧形炸药的内半径和覆盖圆弧的外壳物质。对描述圆弧形炸药中爆轰波传播规律的经验公式进行了研究,结果表明这些经验公式能够准确描述爆轰波速度的变化,在实验测量和预估方面具有一定的参考价值。

References

[1]  Bdzil J B, Fickett W, Stewart D S. Detonation shock dynamics: A new approach to modeling multi-dimensional detonation waves [C]//Proceedings of the 9th International Symposium on Detonation, Portland, USA, 1989: 730-742.
[2]  Aslam T D, Bdzil J B, Stewart D S. Level set methods applied to modeling detonation shock dynamics [J]. J Comput Phys, 1996, 126(2): 390-409.
[3]  Stewart D S, Bdzil J B. The shock dynamics of stable multidimensional detonation [J]. Combust Flame, 1988, 72(3): 311-323.
[4]  Osher S, Sethian J A. Fronts propagating with curvature-dependent speed: Algorithms based on Hamilton-Jacobi formulations [J]. J Comput Phys, 1988, 79(1): 12-49.
[5]  Zhong M, Chen S H, Li P. An issue in the numerical simulation for non-ideal detonation propagation in body-fitted coordinate systems [J]. Chinese Journal of High Pressure Physics, 2006, 20(4): 397-402. (in Chinese)
[6]  钟敏, 陈森华, 李平. 贴体坐标系中非理想爆轰波阵面传播计算的一个问题 [J]. 高压物理学报, 2006, 20(4): 397-402.
[7]  Chen S H, Zhang X, Bai J S. LS method in body-fitted coordinate system for multi-dimensional non-ideal detonation propagation [J]. Chinese Journal of High Pressure Physics, 2000, 14(4): 280-284. (in Chinese)
[8]  陈森华, 张旭, 柏劲松. 贴体坐标系中多维非理想爆轰波阵面传播计算的位标函数法 [J]. 高压物理学报, 2000, 14(4): 280-284.
[9]  Lubyatinsky S N, Batalov S V, Garmashev A Y, et al. Detonation propagation in 180° ribs of an insensitive high explosive [C]//Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, Portland, USA, 2003: 859-862.

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