TY - GEN
T1 - Explosion simulation including a coupled fluid-structure interaction problem using Smoothed Particle Hydrodynamics
AU - Kobashi, Wataru
AU - Matsuo, Akiko
AU - Murata, Kenji
AU - Noguchi, Hirohisa
AU - Kato, Yukio
PY - 2006/12/1
Y1 - 2006/12/1
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:34250811475
SN - 1563478072
SN - 9781563478079
T3 - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
SP - 2301
EP - 2309
BT - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
T2 - 44th AIAA Aerospace Sciences Meeting 2006
Y2 - 9 January 2006 through 12 January 2006
ER -