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Abstract

The paper presents a numerical comparative study on the interaction between focusing waves and a cylinder using a hybrid solver, qaleFOAM, which couples a fully nonlinear potential theory (FNPT) and an incompressible two-phase Navier-Stokes model using a domain decomposition coupling approach. The former is solved by using the Quasi Lagrangian Eulerian Finite Element Method (QALE-FEM) and the latter is solved using the OpenFOAM by the finite volume method with the volume of fluid for identifying the free surface. In this paper, one-way coupling is used in qaleFOAM. For the purpose of comparison, the simulation using the QALE-FEM alone is also carried out. Both results are compared with the experimental data, contributing to the numerical comparative study organized by ISOPE 2020. Good agreements are achieved. Furthermore, the significance of the viscous and turbulent effects is also discussed.

Publication Type:	Book Section
Additional Information:	Proceedings of the Thirtieth (2020) International Ocean and Polar Engineering Conference Shanghai, China, October 11-16, 2020 Copyright © 2020 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-84-5; ISSN 1098-6189
Publisher Keywords:	Focusing wave; cylinder; wave-structure interaction; QALE-FEM; qaleFOAM; Turbulence
Departments:	School of Science & Technology > Engineering

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