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Hydrodynamic coefficients for a 3-dimensional uniform flexible barge using weakly compressible smoothed particle hydrodynamics (WCSPH)

Hydrodynamic coefficients for a 3-dimensional uniform flexible barge using weakly compressible smoothed particle hydrodynamics (WCSPH)
Hydrodynamic coefficients for a 3-dimensional uniform flexible barge using weakly compressible smoothed particle hydrodynamics (WCSPH)
The numerical modelling of the interactions between water waves and floating structures is significant for different areas of the marine sector, especially seakeeping and prediction of wave-induced loads. Seakeeping analysis involving severe flow fluctuations is still quite challenging even for the conventional RANS method. Particle method has been viewed as alternative for such analysis especially those involving deformable boundary, wave breaking and fluid fragmentation around hull shapes. In this paper, the Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH), a fully Lagrangian particle method, is applied to simulate the symmetric radiation problem for a stationary barge treated as a flexible body. This is carried out by imposing prescribed forced simple harmonic oscillations in heave, pitch and the 2- and 3-node distortion modes. The resultant, radiation force predictions, namely added mass and fluid damping coefficients, are compared with results from 3-D potential flow boundary element method and 3-D RANS CFD predictions, in order to verify the adopted modelling techniques for WCSPH. WCSPH were found to be in agreement with most results and could predict the fluid actions equally well in most cases.
weakly compressible, fluid structure interaction, SPH, seakeeping, hydroelasticity, radiation
1671-9433
1-11
Ramli, Muhammad Zahir
523d9545-e898-4303-ab51-cbecb0e44363
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Tan, Mingyi
4d02e6ad-7915-491c-99cc-a1c85348267c
Ramli, Muhammad Zahir
523d9545-e898-4303-ab51-cbecb0e44363
Temarel, Pandeli
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Tan, Mingyi
4d02e6ad-7915-491c-99cc-a1c85348267c

Ramli, Muhammad Zahir, Temarel, Pandeli and Tan, Mingyi (2018) Hydrodynamic coefficients for a 3-dimensional uniform flexible barge using weakly compressible smoothed particle hydrodynamics (WCSPH). Journal of Marine Science and Application, 1-11. (doi:10.1007/s11804-018-0044-2).

Record type: Article

Abstract

The numerical modelling of the interactions between water waves and floating structures is significant for different areas of the marine sector, especially seakeeping and prediction of wave-induced loads. Seakeeping analysis involving severe flow fluctuations is still quite challenging even for the conventional RANS method. Particle method has been viewed as alternative for such analysis especially those involving deformable boundary, wave breaking and fluid fragmentation around hull shapes. In this paper, the Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH), a fully Lagrangian particle method, is applied to simulate the symmetric radiation problem for a stationary barge treated as a flexible body. This is carried out by imposing prescribed forced simple harmonic oscillations in heave, pitch and the 2- and 3-node distortion modes. The resultant, radiation force predictions, namely added mass and fluid damping coefficients, are compared with results from 3-D potential flow boundary element method and 3-D RANS CFD predictions, in order to verify the adopted modelling techniques for WCSPH. WCSPH were found to be in agreement with most results and could predict the fluid actions equally well in most cases.

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Accepted/In Press date: 19 July 2018
e-pub ahead of print date: 19 September 2018
Keywords: weakly compressible, fluid structure interaction, SPH, seakeeping, hydroelasticity, radiation

Identifiers

Local EPrints ID: 423789
URI: http://eprints.soton.ac.uk/id/eprint/423789
ISSN: 1671-9433
PURE UUID: 9c4b46c2-b143-480c-b983-72772b6f62f3
ORCID for Pandeli Temarel: ORCID iD orcid.org/0000-0003-2921-1242

Catalogue record

Date deposited: 01 Oct 2018 16:30
Last modified: 07 Oct 2020 05:06

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