Smoothed-particle hydrodynamics numerical modeling of structures impacted by tsunami bores

Philippe St-Germain*, Ioan Nistor, Ronald Townsend, Tomoya Shibayama

*この研究の対応する著者

研究成果: Article査読

85 被引用数 (Scopus)

抄録

Recently, major tsunami events have resulted in considerable damage to low-lying coastal developments as well as significant loss of life. This is owing to the fact that coastal communities and associated infrastructure are not able to withstand the extreme hydrodynamic forces induced by the overland progression of large tsunami waves. This paper reports the findings of a study, which is part of an ongoing comprehensive (hydraulic-structural engineering) research program initiated at the University of Ottawa in Canada. The goals of the latter are to contribute to the understanding and quantification of extreme hydrodynamic impacts on structural elements, and to the development of design guidelines for structures located in tsunami-prone areas. In this study, a single-phase three-dimensional (3D) weakly compressible smoothedparticle hydrodynamics (WCSPH) model is used to investigate the hydrodynamic forces, induced by the impact of rapidly advancing tsunamilike hydraulic bores, on a freestanding column of a square cross section. Numerical time histories of the water surface elevation and net base horizontal force acting on the column are compared with the results of large-scale physical experiments, conducted by the authors as part of an experimental component of this research program. The experiments were performed on the basis of analogies between tsunami bores and dambreak waves. The bore-structure interaction is analyzed in detail as the validated numerical model is subsequently applied to additionally investigate the influence of laboratory channel geometry on the results. DOI: 10.1061/(ASCE)WW.1943-5460.0000225.

本文言語English
ページ(範囲)66-81
ページ数16
ジャーナルJournal of Waterway, Port, Coastal and Ocean Engineering
140
1
DOI
出版ステータスPublished - 2014 1月

ASJC Scopus subject areas

  • 土木構造工学
  • 水の科学と技術
  • 海洋工学

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