Experimental and numerical studies of underwater shock wave attenuation

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

Research output: Contribution to journalArticle

32 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 languageEnglish
Pages (from-to)139-148
Number of pages10
JournalShock Waves
Volume13
Issue number2
DOIs
Publication statusPublished - 2003 Sep 1

Keywords

  • CFD
  • Shock wave attenuation
  • Underwater shock wave

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)

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    Saito, T., Marumoto, M., Yamashita, H., Hosseini, S. H. R., Nakagawa, A., Hirano, T., & Takayama, K. (2003). Experimental and numerical studies of underwater shock wave attenuation. Shock Waves, 13(2), 139-148. https://doi.org/10.1007/s00193-003-0201-6