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Won-June Jeong, Seol Nam, Jong-Chun Park and Hyeon Kyu Yoon
This study aims to investigate the influence of wheel configurations on hydrodynamic resistance of an amphibious vessel through experiments and simulations. To evaluate the resistance performance associated with wheel attachments, three configurations we...
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Yilin Qu, Xiao Xie, Shucheng Zhang, Cheng Xing, Yong Cao, Yonghui Cao, Guang Pan and Baowei Song
The manta ray, exemplifying an agile swimming mode identified as the median and paired fin (MPF) mode, inspired the development of underwater robots. Robotic manta typically comprises a central rigid body and flexible pectoral fins. Flexible fins provide...
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Abdelrahman S. Abdeldayem, Salma I. Salah, Omar A. Aqel, Martin T. White and Abdulnaser I. Sayma
Supercritical carbon dioxide (sCO2) can be mixed with dopants such as titanium tetrachloride (TiCl4), hexafluoro-benzene (C6F6), and sulphur dioxide (SO2) to raise the critical temperature of the working fluid, allowing it to condense at ambient temperat...
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Muhammad Sulman, Simone Mancini and Rasul Niazmand Bilandi
Incorporating steps into a hull reduces the wetted surface, promoting improved hydrodynamic lift and reduced resistance at high speeds, provided that the step is designed appropriately. Traditional hydrodynamics studies rely on scaled model testing in to...
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Zhisheng Tu, Cailiang Zhang, Hanqiu Liu and Ronghua Zhu
The integrated development of offshore wind power and marine aquaculture is becoming increasingly important. However, the impact mechanism of integrating a net cage on the dynamic characteristics of offshore wind turbines remains unclear. This paper pres...
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Ivan Sulovsky, Guillaume de Hauteclocque, Marilena Greco and Jasna Prpic-Or?ic
The need for maritime freight transport of various goods has never been greater. Consequently, ships are designed with ever-increasing dimensions, with the emphasis, of course, on length. One of the many challenges in the design of large ships is the pre...
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Jun-Soo Kim, Won-Ju Lee, Van Chien Pham and Jae-Hyuk Choi
A numerical study was carried out to investigate the effects of injector spray angle (SA) and injection position (IP) on the combustion and emission characteristics of a two-stroke ME-GI marine engine at full load. Three-dimensional (3D) simulations of t...
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Xiujun Sun, Chenyu Sun, Hongqiang Sang and Can Li
The wave glider is an ocean-wave-propelled autonomous marine vehicle with unique dual-body architecture, which can converse the energy obtained from the ocean wave into the forward thrust. In this paper, the dynamic models of the submerged glider based o...
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Mitchell G. Borg, Claire DeMarco Muscat-Fenech, Tahsin Tezdogan, Tonio Sant, Simon Mizzi and Yigit Kemal Demirel
Conventional liquefied natural gas (LNG) cargo vessels are imposed with tank-fill limitations as precautions to prevent structural damage and stability-loss due to high-impact sloshing, enforcing cargo volume-fills to be lower than 10% or higher than 70%...
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Peng Yu, Zhiyuan Hu, Guohua Xu and Yongjie Shi
Due to the small tilt angle, a tiltrotor operates in non-axial flow conditions during shipboard take-off and landing. The non-uniformity of the blade?s air-load is high, resulting in structural deformation with high fluctuation frequency, affecting the r...
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