Simulation of Moving Features of Underwater Explosion Bubble in Different Water Depths

LU Zhong-bao; NAN Chang-jiang; BU Xiang-dong; WANG Tuan-meng

doi:10.11993/j.issn.1673-1948.2009.05.004

Volume 17 Issue 5

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Article Navigation > Journal of Unmanned Undersea Systems > 2009 > 17(5): 015-18

LU Zhong-bao, NAN Chang-jiang, BU Xiang-dong, WANG Tuan-meng. Simulation of Moving Features of Underwater Explosion Bubble in Different Water Depths[J]. Journal of Unmanned Undersea Systems, 2009, 17(5): 015-18. doi: 10.11993/j.issn.1673-1948.2009.05.004

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LU Zhong-bao, NAN Chang-jiang, BU Xiang-dong, WANG Tuan-meng. Simulation of Moving Features of Underwater Explosion Bubble in Different Water Depths[J]. Journal of Unmanned Undersea Systems, 2009, 17(5): 015-18. doi: 10.11993/j.issn.1673-1948.2009.05.004

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Simulation of Moving Features of Underwater Explosion Bubble in Different Water Depths

doi: 10.11993/j.issn.1673-1948.2009.05.004

The 705 Research Institute, China Shipbuilding Industry Corporation,Xi′an 710075, China

Received Date: 2009-05-25
Rev Recd Date: 2009-06-18
Publish Date: 2009-11-30

Abstract

Abstract

In order to study the influence of different water depths on moving feature of underwater explosion bubble, a simulation model of typical charge explosion in different water depths is established using the finite element analysis (FEA) software LS-DYNA. Curves of bubble radius versus time and parameters of pressure field in different water depths are hence obtained and compared with the experimental data, indicating the validity of the simulation model. By analyzing the maximal radius, impulse period and pressure field of the bubbles, the effect of pressure in different water depths on explosion bubble is achieved. Simulation results indicate that for a same charge, the maximal radius and impulse period of the bubbles decrease with the increase of water depth, the maximal pressure is on the upside of the bubbles, and the minimum pressure is on the underside. This study may offer a reference to the assessment of the damage power of a underwater weapon warhead.
- underwater weapon,
- typical charge,
- underwater explosion,
- bubble impulse,
- damage power,
- LS-DYNA,
- simulation

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References

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Simulation of Moving Features of Underwater Explosion Bubble in Different Water Depths

doi: 10.11993/j.issn.1673-1948.2009.05.004

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Simulation of Moving Features of Underwater Explosion Bubble in Different Water Depths

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