Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting |
| Pages | 2301-2309 |
| Number of pages | 9 |
| Volume | 4 |
| Publication status | Published - 2006 |
| Event | 44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States Duration: 2006 Jan 9 → 2006 Jan 12 |
Other
| Other | 44th AIAA Aerospace Sciences Meeting 2006 |
|---|---|
| Country | United States |
| City | Reno, NV |
| Period | 06/1/9 → 06/1/12 |
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ASJC Scopus subject areas
- Space and Planetary Science
- Aerospace Engineering
Cite this
Explosion simulation including a coupled fluid-structure interaction problem using Smoothed Particle Hydrodynamics. / Kobashi, Wataru; Matsuo, Akiko; Murata, Kenji; Noguchi, Hirohisa; Kato, Yukio.
Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting. Vol. 4 2006. p. 2301-2309.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
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
Y1 - 2006
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.
UR - http://www.scopus.com/inward/record.url?scp=34250811475&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250811475&partnerID=8YFLogxK
M3 - Conference contribution
SN - 1563478072
SN - 9781563478079
VL - 4
SP - 2301
EP - 2309
BT - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
ER -