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Stephan Helma
Undoubtedly, the Wageningen B-screw Series is the most widely used systematic propeller series. It is very popular to preselect propeller dimensions during the preliminary design stage before performing a more thorough optimisation, but in the smaller en...
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Mina Tadros, Manuel Ventura and Carlos Guedes Soares
This paper presents a comparison between different types of propellers operated in calm water to evaluate their performance behind hulls and in open-water conditions. A bulk carrier is chosen as a case study to perform the simulation and to evaluate the ...
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Enrico Cestino, Davide Pisu, Vito Sapienza, Lorenzo Chesta and Valentina Martilla
A new Range Equation for a hybrid-electric propeller-driven aircraft was formulated by an original derivation based on the comparison of Virtual Electrical Aircraft (VEA) and Virtual Thermal Aircraft (VTA) range equations. The new formulation makes it po...
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Manaf Muhammed and Muhammad Shakeel Virk
Ice accretion on rotary-wing unmanned aerial vehicles (RWUAVs) needs to be studied separately from the fixed-wing UAVs because of the additional flow complexities induced by the propeller rotation. The aerodynamics of rotatory wings are extremely challen...
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Jaehoon Jee, Chongmin Kim and Yanggon Kim
In order to cope with strengthened marine environmental regulations and to reduce fuel consumption, recently constructed vessels are equipped with an ultra-long stroke engine and apply engine de-rating technology. This was intended to improve propulsion ...
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Rolf Nagel
Pág. 1601 - 1610
The project focusses on the integration of energy saving technologies in the early design stage of ships, using advanced simulation models to be developed for the energy grid of the ship. The optimum combination of energy consumers incl. energy recovery ...
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Nicola Russo, Aniello Daniele Marano, Giuseppe Maurizio Gagliardi, Michele Guida, Tiziano Polito and Francesco Marulo
Multirotors are gaining great importance in the layout of innovative and more agile mobility. In this framework, a possible solution to developing an aircraft complying with the stringent size requirements characterizing this type of application may be a...
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Xinglu Xia, Dongli Ma, Liang Zhang, Xing?an Liu and Keran Cong
With the rapid development of vertical takeoff and landing (VTOL) aircraft, the blade design of a propeller suitable for VTOL aircraft with a wide range of operating conditions has become a challenging and popular task. This paper proposes a multi-object...
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Aldias Bahatmaka, Dong Joon Kim, Deddy Chrismianto
Pág. 73 - 84
The development of underwater robot technology is growing rapidly. For reaching the best performance, it is important that the innovation on ROV should be focused on the thruster and propeller.In this research, the ducted propeller thruster is used while...
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Myeong-Ho Song, Xuan Duong Pham and Quang Dao Vuong
Modern merchant ships use marine propulsion systems equipped with an ultra-long-stroke diesel engine that directly drives a large slow-turning propeller. Such systems use fewer cylinders and generate greater power at slower shaft speeds, which affords im...
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Abouzar Ebrahimi, Mohammad Saeed Seif and Ali Nouri-Borujerdi
Noise generated by ships is one of the most significant noises in seas, and the propeller has a significant impact on the noise of ships, which reducing it can significantly lower the noise of vessels. In this study, a genetic algorithm was used to optim...
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