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Proceedings Paper

Demonstration of numerically simulating figures for underwater explosions
Author(s): Juzhen Cao; Longhe Liang
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Paper Abstract

In this paper, a 1-D and a 2-D axially symmetrical hydrodynamics codes are used to numerically simulate the various characteristics produced by the explosions of spherical Tetral charges with a radius of 3.27 cm exploding at 4000 m underwater and near the water surface (at 10 cm underwater) respectively. Different figures obtained from deep-water explosion or from near-water-surface explosion such as the law of shock wave travelling in water, the explosion product-water interface time history, the effect of discontinuity of water and the height of water column are all presented here. The full physical process of shaped charge metallic jet penetrating water and separated metal targets is also shown in this paper. The velocity decrease of the metal jet travelling in water and the scales of the penetrated holes in targets made by metal jet given by numerical simulations have good agreement with experimental ones. Therefore, it's a very effective to use numerical simulation method to investigate on the problem of underwater explosion, and it can give some figures, which are very difficult to obtain from experiment.

Paper Details

Date Published: 17 April 2001
PDF: 7 pages
Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); doi: 10.1117/12.424347
Show Author Affiliations
Juzhen Cao, Institute of Applied Physics and Computational Mathematics (China)
Longhe Liang, Institute of Applied Physics and Computational Mathematics (China)

Published in SPIE Proceedings Vol. 4183:
24th International Congress on High-Speed Photography and Photonics
Kazuyoshi Takayama; Tsutomo Saito; Harald Kleine; Eugene V. Timofeev, Editor(s)

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