The influence of up-wave barge motion on the water resonance at a narrow gap between two rectangular barges under waves in the sea

Jin, R, Ning, DZ, Bai, Wei and Geng, B (2018) The influence of up-wave barge motion on the water resonance at a narrow gap between two rectangular barges under waves in the sea. Acta Oceanologica Sinica, 37 (11). pp. 68-76. ISSN 0253-505X

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Abstract

A three-dimensional time-domain potential flow model is developed and applied to simulate the wave resonance in a gap between two side-by-side rectangular barges. A fourth-order predict-correct method is implemented to update free surface boundary conditions. The response of an up-wave barge is predicted by solving the motion equation with the Newmark-β method. Following the validation of the developed numerical model for wave radiation and diffraction around two side-by-side barges, the influence of up-wave barge motion on the gap surfaceresonance is investigated in two different locations of the up-wave barge relative to the back-wave barge at various frequencies. The results reveal that the freely floating up-wave barge significantly influences the resonance frequency and the resonance wave amplitude. Simultaneously, the up-wave barge located in the middle of the back-wave barge leads to a reduction in the resonance wave amplitude and motion response when compared with other configurations.