Abstract
ABSTRACT Floating breakwaters (FB) play an important role in protecting the safety of marine structures. In this paper, the Fluid Structure Interaction (FSI) algorithm was used to numerically simulate the Box-type FB with waves. After the verification of the accuracy of the numerical model, the wave-eliminating mechanism of the submerged Box-type FB is explored, and the results indicate that the energy consumption at the corners of the Box-type FB is dominated, hence an I-shaped FB was proposed. The comparative study found that the improvement of wave-eliminating ability of I-shaped FB is mainly due to the improvement of reflection ability, and it reaches maximum when the ratio of the width of I-shaped FB to the wavelength equals 0.3. Then the motion response and the mooring force of the FB were investigated. The I-shaped FB could save 10−20% material than that of the Box-type FB with the same size.
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