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Authors: Wei, Z.*
Dalrymple, R.*
Herault, A.*
Bilotta, G.*
Rustico, E.*
Yeh, H.*
Title: SPH modeling of dynamic impact of tsunami bore on bridge piers
Title of journal: Coastal Engineering
Series/Report no.: /104 (2015)
Publisher: Elsevier Science Limited
Issue Date: Oct-2015
DOI: 10.1016/j.coastaleng.2015.06.008
Keywords: Tsunami bore; Bridge piers; Wave–structure interaction; Hydrodynamic force; GPUSPH; Smoothed Particle Hydrodynamics
Abstract: The Smoothed Particle Hydrodynamics (SPH) method is applied to investigate the impact of a tsunami bore on simplified bridge piers in this study. This work was motivated by observations of bridge damage during several recent tsunami events, and its aim is to further the understanding of the dynamic interaction between a tsunami bore and a bridge pier. This study is carried out by simulating a well-conducted physical experiment on a tsunami bore impingement on vertical columns with an SPH model, GPUSPH. The influences of bridge pier shape and orientation on free surface evolution and hydrodynamic loading are carefully examined. Furthermore, the unsteady flow field that is around and in the wake of the bridge pier is analyzed. Finally, GPUSPH is applied to explore the hydrodynamic force caused by the bridge pier blockage, the wave impact on structures, and the bed shear stress around a bridge pier due to a strong tsunami bore.
Appears in Collections:03.01.01. Analytical and numerical modeling
Papers Published / Papers in press

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