Development of in-house high-resolution hydrocode for assessment of blast waves and its application

XU Weizheng; WU Weiguo

doi:10.3969/j.issn.1673-3185.2017.03.010

Volume 12 Issue 3

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XU Weizheng, WU Weiguo. Development of in-house high-resolution hydrocode for assessment of blast waves and its application[J]. Chinese Journal of Ship Research, 2017, 12(3): 64-74. doi: 10.3969/j.issn.1673-3185.2017.03.010

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Development of in-house high-resolution hydrocode for assessment of blast waves and its application

doi: 10.3969/j.issn.1673-3185.2017.03.010

XU Weizheng^{1, 2
,},
WU Weiguo^{1, 2
,
,}

1.
Key Laboratory of High Performance Ship Technology of Ministry of Education, Wuhan University of Technology, Wuhan 430063, China
2.
School of Transportation, Wuhan University of Technology, Wuhan 430063, China

Received Date: 2016-11-28
Available Online: 2017-05-12
Publish Date: 2017-06-01

Abstract

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The propagation and evolution characteristics of blast waves in confined spaces are complicated due to the constraint of the surrounding walls, by which the enhanced reflected shock waves will cause more serious damage to the internal structures, facilities and personnel. In order to investigate the characteristics of explosions in confined spaces, an in-house high-resolution hydrocode was developed in this present work. The third-order WENO finite difference scheme (weighted essentially non-oscillation scheme) was implemented in the code to capture the shock waves generated by cylindrical explosives. The Sod shock tube problem, interacting blast wave problem and blast in air problem were simulated to validate the code. The validated code was then used to simulate the blast waves generated by condensed explosives in closed, vented and connected spaces. The propagation of blast waves and the characteristics of blast load were subsequently investigated. The developed code appears to accurately predict the process of explosions in confined spaces. This high-resolution hydrocode can be used to study the propagation paths of blast waves in complicated spaces and evaluate the internal blast load, which can provide reliable input for the design of explosion-resistant structures.
- explosive shock wave,
- confined space,
- numerical simulation,
- high-resolution hydrocode,
- WENO scheme,
- program development

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References(22)

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