REVISIT THE TSUNAMI HYDRODYNAMIC FORCE ON THE FRONT FACE OF ONSHORE STRUCTURE

Daisuke Takabatake, Naoto Kihara

Abstract


Great tsunamis passing through structures in some cases cause structural damage by the hydrodynamic force.
Although there are many empirical methods to estimate hydrodynamic force which are expressed with a function of
flow depth, flow velocity or Froude number, the predicted hydrodynamic forces exhibit considerable scatter. In order
to investigate the characteristics of the hydrodynamic force acting on the front face of a structure and propose the
prediction method of the hydrodynamic force induced by a tsunami, we have carried out three dimensional numerical
simulations of tsunami passing a structure.

Keywords


tsunami; hydrodynamic force; quasi-steady force

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References


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Takabatake, D., N. Kihara and N. Tanaka 2013. Numerical study for the hydrodynamic pressure on the front of onshore structures by tsunami, Proceedings of Coastal Engineering, JSCE, Vol.69, No.2, pp.851-855. (in Japanese)

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DOI: https://doi.org/10.9753/icce.v34.structures.40