不同水底介质对有限域中装药沉底爆炸特性的影响

杨莉; 汪玉; 黄超; 汪斌

doi:10.11858/gywlxb.2012.05.010

不同水底介质对有限域中装药沉底爆炸特性的影响

doi: 10.11858/gywlxb.2012.05.010

杨莉^{1 , ,},
汪玉¹,
黄超²,
汪斌²

1.
海军装备研究院，北京 100161；
2.
中国工程物理研究院流体物理研究所，四川绵阳 621900

详细信息

通讯作者:
杨莉 E-mail:iris-yang-bit@gmail.com

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出版历程
- 收稿日期: 2011-12-06
- 修回日期: 2012-02-25
- 发布日期: 2012-10-15

Effects of Different Grounds on the Loading Characteristics of Limited Underwater Explosion from a Bottom Charge

YANG Li^{1
, ,},
WANG Yu¹,
HUANG Chao²,
WANG Bin²

1.
Naval Academy of Armament, Beijing 100161, China;
2.
Institute of Fluid Physics, CAEP, Mianyang 621900, China

摘要

摘要: 通过开展装药沉底爆炸原理性实验研究，得到了不同水底条件对装药沉底爆炸气泡运动和冲击波压力的影响规律：沉底装药水下爆炸气泡通常呈半球形，依附在水底并同时急剧膨胀达到最大半径，随后气泡做收缩运动并连带水底介质颗粒迅速上浮，同时形状发生显著变化，如在石底和泥底时气泡在水底射流的作用下呈蘑菇状上浮，砂底时气泡则呈现出柱状上浮、未出现明显脉动运动即已坍塌破裂；沉底爆炸与水底介质发生强烈耦合作用而形成不同程度的反射波，通常水下石底的反射冲击波较泥底和砂底更强烈，且一般迭加后的冲击波峰值压力高于入射波阵面压力；不同水底介质条件下，装药与水底发生的强烈耦合作用均对水底造成强冲击破坏。
- 水下爆炸 /
- 冲击波 /
- 气泡 /
- 沉底装药
Abstract: In order to research the effects of different grounds on the shock wave propagation and the general laws of the bubble motion of underwater explosion from a bottom charge, principle experiments of underwater explosion were conducted in a water tank. Several physical phenomena observed such as bubble jetting and bubble migration from the different grounds were discussed. It is suggested that the shape and dynamic behavior of bubble have great dependence on the ground properties. Furthermore, underwater explosion from a bottom charge usually causes serious damage to the bottom, and the reflected wave is sometimes stronger than the incident shock wave such as for the rock ground.
- underwater explosion /
- shock wave /
- bubble /
- bottom charge

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参考文献(10)

Zhang P X, Ye X S, Gu W B, et al. Discussion on calculation method of peak pressure subjected to shallow-layer water explosion [J]. Engineering Blasting, 2000, 6(1): 15-20. (in Chinese)

张朋祥, 叶序双, 顾文彬, 等. 球形装药浅层水中水底爆炸冲击波压力测试及分析 [J]. 工程爆破, 2000, 6(1): 15-20.

Yao X L, Yang W S, Chen J, et al. Numerical calculation of explosion power of mines lying on seabed [J]. Explosion and Shock Waves, 2011, 31(2): 173-178. (in Chinese)

姚熊亮, 杨文山, 陈娟, 等. 沉底水雷爆炸威力的数值计算 [J]. 爆炸与冲击, 2011, 31(2): 173-178.

Gu W B, Yang T H, Ye X S, et al. Numerical simulation of single charge explosion on seabed in shallow water [J]. Journal of PLA University of Science and Technology(Natural Science Edition), 2000, 1(3): 51-55. (in Chinese)

顾文彬, 阳天海, 叶序双, 等. 单个装药浅层水中沉底爆炸的数值模拟 [J]. 解放军理工大学学报(自然科学版), 2000, 1(3): 51-55.

Li H T, Zhao L, Ning Y C, et al. Testing and analyzing pressure produced by submarine explosion with spherical charges [J]. Engineering Blasting, 2005, 11(1): 16-21. (in Chinese)

李洪涛, 赵琳, 宁永成, 等. 球形装药海底裸爆压力测试与分析 [J]. 工程爆破, 2005, 11(1): 16-21.

Rebecca G. The effects of porous sea bottoms on the propogation of underwater shock waves using the P-a equation of state [A]//Proceedings of 80th Shock and Vibration Symposium [C]. San Diego, 2009: 33.

Michael M. Explosion effects and properties: Explosion effects in water, AD-A056694 [R]. US: Naval Surface Weapons Center White Oak Lab Silver Spring Md, 1978.

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