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Indexed by:期刊论文

Date of Publication:2017-06-01

Journal:ACTA OCEANOLOGICA SINICA

Included Journals:SCIE、Scopus

Volume:36

Issue:6

Page Number:104-111

ISSN No.:0253-505X

Key Words:side-by-side barges; resonant elevation; second-order time-domain model; wave directionality; water resonance

Abstract:A three-dimensional time-domain potential flow model with second-order nonlinearity was applied to simulate the wave resonance in a gap between two side-by-side rectangular barges. In the model, the velocity potential was decomposed into the incident potential and unknown scattered potential which was obtained by solving the boundary integral equation. The fourth-order predict-correct method was applied to enforce the free surface conditions in the time integration. The influence of the wave direction on the first and second-order gap surface elevations was investigated. The results reveal that the incident wave angle does not affect the resonant wave frequency and the maximum surface elevation at resonance always occurs at the middle location along the gap. However, the corresponding maximum wave surface elevation at resonance varies with the incident wave angle. The location of the maximum wave elevation shifts either upstream or downstream along the gap, depending on the relative magnitude of incident wave frequency to the resonant frequency.