Explosion simulation including a coupled fluid-structure interaction problem using Smoothed Particle Hydrodynamics

Wataru Kobashi, Akiko Matsuo, Kenji Murata, Hirohisa Noguchi, Yukio Kato

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

The Smoothed Particle Hydrodynamics (SPH) method is used to simulate the dynamics of the underwater explosion (UNDEX) within the steel vessel. Three kinds of simulations, the propagation of underwater shock wave generated by the experimental data, underwater shock wave-metal interaction, and detonation gas-water interaction are performed and are compared with the experiment to provide confidence in numerical modeling. These simulations clarified that the interaction between steel vessel and water is well simulated, but the reproduction of expansions of water and detonation gas are difficult to simulate because the quick increase of volume per one particle cause the oscillation at detonation gas-water interface. As a result, the simulated deformation of steel vessel caused by UNDEX becomes smaller than that of the experiment. The present simulations clarify the advantages and difficulties of SPH method reproducing the damage of explosion including the coupled fluid-structure interaction.

本文言語English
ホスト出版物のタイトルCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
ページ2301-2309
ページ数9
出版ステータスPublished - 2006
イベント44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
継続期間: 2006 1月 92006 1月 12

出版物シリーズ

名前Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
4

Other

Other44th AIAA Aerospace Sciences Meeting 2006
国/地域United States
CityReno, NV
Period06/1/906/1/12

ASJC Scopus subject areas

  • 宇宙惑星科学
  • 航空宇宙工学

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