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Lei Mei, Wenhui Yan, Junwei Zhou and Weichao Shi
Recent studies indicate that bow foil biomimetic systems can significantly improve ship propulsion in waves. In this paper, the DTMB 5415 ship model is taken as the object and a semi-active elastic flapping foil is proposed to install at its bow underwat...
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Jure Sr?e, Marko Perkovic and Aleksander Grm
The environmental effects of ship propellers were not even close to fully examined before the current massive ships were introduced to sea trade. Larger ships, result in greater length, beam, draft and propulsion power. Of concern here is the under-keel ...
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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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Maria Acanfora, Marco Altosole, Flavio Balsamo, Luca Micoli and Ugo Campora
The article deals with a simulation approach to the representation of the ship motions in waves, interacting with the propulsion system behavior (diesel engine and propeller). The final goal is the development of a simulator, as complete as possible, tha...
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Kostas Belibassakis, Evangelos Filippas and George Papadakis
Flapping-foil thrusters arranged at the bow of the ship are examined for the exploitation of energy from wave motions by direct conversion to useful propulsive power, offering at the same time dynamic stability and reduction of added wave resistance. In ...
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Iro Malefaki and Kostas Belibassakis
Biomimetic flapping-foil thrusters can operate efficiently while offering desirable levels of thrust required for the propulsion of a small vessel or an Autonomous Underwater Vehicle (AUV). These systems have been studied both as main propulsion devices ...
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Kostas Belibassakis, John Prospathopoulos and Iro Malefaki
Flapping-foil thrusters are systems that operate at a substantially lower frequency compared with marine propellers and are characterized by a much smaller power concentration. These biomimetic devices are able to operate very efficiently, offering desir...
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Ivan Gospic, Ivana Martic, Nastia Degiuli and Andrea Farkas
One of the short-term operational measures for fuel savings and reducing CO2 emissions from ships at sea is sailing at reduced speed, i.e., slow steaming, while the gasification of the ship represents an important mid-term technical measure. In this stud...
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Lúcia Moreira, Roberto Vettor and Carlos Guedes Soares
In this paper, simulations of a ship travelling on a given oceanic route were performed by a weather routing system to provide a large realistic navigation data set, which could represent a collection of data obtained on board a ship in operation. This d...
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Evangelos S. Filippas, George P. Papadakis and Kostas A. Belibassakis
Flapping foils located beneath or to the side of the hull of the ship can be used as unsteady thrusters, augmenting ship propulsion in waves. The basic setup is composed of a horizontal wing, which undergoes an induced vertical motion due to the ship?s r...
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