City Research Online

Abstract

This paper presents a numerical comparative study on the interaction between breaking waves and vertical seawalls attached with a recurved parapet using the hybrid solver, qaleFOAM, which couples a two-phase incompressible Navier-Stokes (NS) solver with the Quasi Lagrangian-Eulerian Finite Element Method (QALE-FEM) solver based on the fully nonlinear potential theory. The focus of the comparison is to reveal the possible scale effect due to improper scaling of the viscos effects in the model test adopting the Froude similarity in the wave-structure interaction (WSI) practices. For this purpose, both a scaled model test with 1:8 model and a full-scale experiment with large prototype model are used in the study. In the NS solver of the qaleFOAM, both a laminar model and k-ω SST model are adopted. The wave elevations at different locations and the impact pressure on the seawall are investigated. It is concluded that the performance of the qaleFOAM is similar for both the scaled and full-scale modelling; the viscous, turbulence and air compressibility may be critical for the formation of the breaking waves, which eventually affects the prediction of the impact load.

Publication Type:	Article
Publisher Keywords:	reservoir simulation, interaction, full-scale experiment, parapet, upstream oil & gas, experiment, offshore polar eng, isope, united states government, qalefoam
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering
Departments:	School of Science & Technology > Engineering
SWORD Depositor:	Symplectic Administrator

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