Short-range characters of underwater blast waves

SHI Hua-qiang; ZONG Zhi; JIA Jing-bei

doi:10.11883/1001-1455(2009)02-0125-06

Volume 29 Issue 2

Sep. 2014

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Article Navigation > Explosion And Shock Waves > 2009 > 29(2): 125-130

SHI Hua-qiang, ZONG Zhi, JIA Jing-bei. Short-range characters of underwater blast waves[J]. Explosion And Shock Waves, 2009, 29(2): 125-130. doi: 10.11883/1001-1455(2009)02-0125-06

Citation:

SHI Hua-qiang, ZONG Zhi, JIA Jing-bei. Short-range characters of underwater blast waves[J]. Explosion And Shock Waves, 2009, 29(2): 125-130. doi: 10.11883/1001-1455(2009)02-0125-06

SHI Hua-qiang, ZONG Zhi, JIA Jing-bei. Short-range characters of underwater blast waves[J]. Explosion And Shock Waves, 2009, 29(2): 125-130. doi: 10.11883/1001-1455(2009)02-0125-06

Citation:

SHI Hua-qiang, ZONG Zhi, JIA Jing-bei. Short-range characters of underwater blast waves[J]. Explosion And Shock Waves, 2009, 29(2): 125-130. doi: 10.11883/1001-1455(2009)02-0125-06

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Short-range characters of underwater blast waves

doi: 10.11883/1001-1455(2009)02-0125-06

1.
Department of Naval Architecture, Dalian University of Technology, Dalian 116024, Liaoning, China;
2.
State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian 116024, Liaoning, China

Publish Date: 2009-03-25

Abstract

Abstract

Blast wave produced by an outer-sphere charge exploding in water of infinite depth was numerically simulated by solving the one-dimensional hydrodynamic equations for an inviscid and non-heat-conducting flow.In the simulation calculation, a Jones-Wilkins-Lee equation of state for TNT and a two-phase equation of state for water were adopted. The interface between the explosion products and water was determined by using the level set method.Firstly, grid-size effects on the convergence of the calculated results were explored. And the characters of pressure and impulse of underwater blast wave in the short range were investigated in detail. Finally, the approximate formulas for the peak pressure, specific impulse and attenuation constant were obtained by curve fitting.
- mechanics of explosion,
- short-range character,
- numerical calculation,
- shock wave,
- underwater explosion

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