Experimental and numerical studies of underwater shock wave attenuation

T. Saito; M. Marumoto; H. Yamashita; S. H.R. Hosseini; A. Nakagawa; T. Hirano; K. Takayama

doi:10.1007/s00193-003-0201-6

Experimental and numerical studies of underwater shock wave attenuation

T. Saito, M. Marumoto, H. Yamashita, S. H.R. Hosseini, A. Nakagawa, T. Hirano, K. Takayama

HOSP - University Hospital (not affiliated with any section)

Tohoku University

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

The attenuation of an underwater shock wave by a thin porous layer is studied both experimentally and numerically. The shock waves are generated by exploding 10 mg silver azide pellets and the pressures at different distances from the explosion center are measured. Measurements are also carried out with a gauze layer placed between the explosion source and the pressure gauge. The results with and without the gauze layer are compared evaluating the shock wave attenuation. Numerical simulations of the phenomenon are also carried out for a simple wave attenuation model. The results are compared with the experimental data. Despite the simple mathematical model of wave attenuation, the agreement between the experimental and numerical results is reasonable.

Original language	English
Pages (from-to)	139-148
Number of pages	10
Journal	Shock Waves
Volume	13
Issue number	2
DOIs	https://doi.org/10.1007/s00193-003-0201-6
Publication status	Published - 2003 Sept

Keywords

CFD
Shock wave attenuation
Underwater shock wave

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10.1007/s00193-003-0201-6

Cite this

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title = "Experimental and numerical studies of underwater shock wave attenuation",

abstract = "The attenuation of an underwater shock wave by a thin porous layer is studied both experimentally and numerically. The shock waves are generated by exploding 10 mg silver azide pellets and the pressures at different distances from the explosion center are measured. Measurements are also carried out with a gauze layer placed between the explosion source and the pressure gauge. The results with and without the gauze layer are compared evaluating the shock wave attenuation. Numerical simulations of the phenomenon are also carried out for a simple wave attenuation model. The results are compared with the experimental data. Despite the simple mathematical model of wave attenuation, the agreement between the experimental and numerical results is reasonable.",

keywords = "CFD, Shock wave attenuation, Underwater shock wave",

author = "T. Saito and M. Marumoto and H. Yamashita and Hosseini, {S. H.R.} and A. Nakagawa and T. Hirano and K. Takayama",

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T1 - Experimental and numerical studies of underwater shock wave attenuation

AU - Saito, T.

AU - Marumoto, M.

AU - Yamashita, H.

AU - Hosseini, S. H.R.

AU - Nakagawa, A.

AU - Hirano, T.

AU - Takayama, K.

PY - 2003/9

Y1 - 2003/9

N2 - The attenuation of an underwater shock wave by a thin porous layer is studied both experimentally and numerically. The shock waves are generated by exploding 10 mg silver azide pellets and the pressures at different distances from the explosion center are measured. Measurements are also carried out with a gauze layer placed between the explosion source and the pressure gauge. The results with and without the gauze layer are compared evaluating the shock wave attenuation. Numerical simulations of the phenomenon are also carried out for a simple wave attenuation model. The results are compared with the experimental data. Despite the simple mathematical model of wave attenuation, the agreement between the experimental and numerical results is reasonable.

AB - The attenuation of an underwater shock wave by a thin porous layer is studied both experimentally and numerically. The shock waves are generated by exploding 10 mg silver azide pellets and the pressures at different distances from the explosion center are measured. Measurements are also carried out with a gauze layer placed between the explosion source and the pressure gauge. The results with and without the gauze layer are compared evaluating the shock wave attenuation. Numerical simulations of the phenomenon are also carried out for a simple wave attenuation model. The results are compared with the experimental data. Despite the simple mathematical model of wave attenuation, the agreement between the experimental and numerical results is reasonable.

KW - CFD

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KW - Underwater shock wave

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Experimental and numerical studies of underwater shock wave attenuation

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