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Dimitris Ntouras, George Papadakis and Kostas Belibassakis
Flapping foils for augmenting thrust production have drawn attention as a means of assisting ship propulsion in waves due to their high efficiency rate compared to traditional screw propellers. However, they can also offer substantial resistance reductio...
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Jian Li, Peng Wang, Xiaoyi An, Da Lyu, Ruixuan He and Baoshou Zhang
Flapping foils are studied to achieve an efficient propeller. The performance of the flapping foil is influenced by many factors such as oncoming vortices, heaving amplitude, and geometrical parameters. In this paper, investigations are performed on flap...
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Pengcheng Gao, Qiaogao Huang and Guang Pan
A numerical simulation is used to investigate the effects of adding high frequency and low amplitude perturbations of different waveforms to the sinusoidal-based signal of the heaving foil on the propulsion performance and wake structure. We use the adju...
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Zhanfeng Qi, Bo Zou, Huiqiang Lu, Jian Shi, Guofu Li, Yufeng Qin and Jingsheng Zhai
A numerical investigation is conducted to study the propulsive performance of the semi-active flapping foil of the wave glider, where the heaving smotion is fully prescribed, and the pitching motion is determined by the hydrodynamic force and torsion spr...
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Dimitra E. Anevlavi, Evangelos S. Filippas, Angeliki E. Karperaki and Kostas A. Belibassakis
Recent studies indicate that nature-inspired thrusters based on flexible oscillating foils show enhanced propulsive performance. However, understanding the underlying physics of the fluid?structure interaction (FSI) is essential to improve the efficiency...
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