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Suleyman Duman, Evangelos Boulougouris, Myo Zin Aung, Xue Xu and Amin Nazemian
The consideration of shallow water effects has gained in importance regarding inland operations. The interaction between the keel and the riverbed affects the hydrodynamic characteristics of marine vessels. The highly complex nature of the interference p...
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William Lambert, Stefano Brizzolara and Craig Woolsey
Near-surface simulation methods for shallowly submerged underwater vehicles are necessary for the population of a variety of free-surface-affected, coefficient-based maneuvering and seakeeping models. Simulations vary in complexity and computational cost...
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Xiaoqing Tian, Tianwei Xie, Zhangming Liu, Xianghua Lai, Huachen Pan, Chizhong Wang, Jianxing Leng and M. M. Rahman
The resistance of a large Pure Car Truck Carrier (PCTC) with a bulbous bow and a transom stern is evaluated in the present paper. Several cases at nine different ship speeds in calm water are simulated and results are compared with the experimental measu...
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Qiang Zheng, Bai-Wei Feng, Zu-Yuan Liu and Hai-Chao Chang
The particle swarm optimisation (PSO) algorithm has been widely used in hull form optimisation owing to its feasibility and fast convergence. However, similar to other intelligent algorithms, PSO also has the disadvantages of local premature convergence ...
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Tianlong Mei, Maxim Candries, Evert Lataire and Zaojian Zou
In this paper, an improved potential flow model is proposed for the hydrodynamic analysis of ships advancing in waves. A desingularized Rankine panel method, which has been improved with the added effect of nonlinear steady wave-making (NSWM) flow in fre...
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Pengwei Hu, Ying Cui, Chenyu Zhao, Yanan Li and Boyang Li
Due to the interference between the main hull and the outrigger of the pentamaran, resistance is greatly affected. Therefore, research on the pentamaran front outrigger inclination angle has further practical significance for reducing resistance. In this...
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Yu Zhang and Dongqin Li
A novel float-type device for wave energy power generation, designed specifically for offshore wave environments, is introduced as an innovative technology in wave energy utilization. Herein, we present the design concept, structural composition, and ene...
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Chunhui Wang, Jiaan Wang, Chao Wang, Zeping Wang and Yuan Zhang
The marginal ice zone (MIZ) is located at the junction of ice-covered areas and open water, where waves cause ice floes to break up and change their state of motion, thus threatening the safety of ships navigating the ice. This study employs the Structur...
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Rui Deng, Shigang Wang, Yuxiao Hu, Yuquan Wang and Tiecheng Wu
In this study, the effect of joint optimization of the principal dimensions and hull form on the hydrodynamic performance of a bulk carrier was studied. In the first part of the joint optimization process, fast principal-dimension optimization of the ori...
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Baiwei Feng, Chengsheng Zhan, Zuyuan Liu, Xide Cheng and Haichao Chang
Basis functions are key in constructing interpolation equations in hull surface modification based on radial basis functions (RBF) interpolation. However, few have studied the selection of basis functions in depth. By comparing several typical basis func...
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Lei Zhang, Jia-Ning Zhang and Yu-Chen Shang
A hybrid method?coupled with the boundary element method (BEM) for wave-making resistance, the empirical method (EM) for viscous resistance, and the boundary layer theory (BLT) for capture of an area?s physical parameters?was proposed to predict waterjet...
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Dongmei Yang, Zhiyuan Sun, Yi Jiang and Zeyang Gao
Based on the FVM (finite volume method) numerical method, the flow field around the stepped planing hull in Taunton series was simulated. According to the general procedure of numerical uncertainty analysis, the numerical uncertainty in the high-speed fl...
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Héctor Rubén Díaz Ojeda, Sebastian Oyuela, Roberto Sosa, Alejandro Daniel Otero and Francisco Pérez Arribas
Naval hydrodynamics typically focus on reducing ship resistance, which can be achieved by incorporating a bulbous bow. This feature is commonly used in the merchant fleet and smaller vessels, such as fishing boats, to minimize wave-making resistance. How...
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Florin Pacuraru, Andreea Mandru and Adham Bekhit
The scope of the present study is to investigate the effects of various geometrical hull features, such as tunnels, spray rails and whiskers on the hydrodynamic performance of a high-speed planing hull. The criteria being tested to emphasize the boat per...
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Chang Shi, Xide Cheng, Zuyuan Liu, Kunyu Han, Penghui Liu and Long Jiang
When a vehicle moves underwater, disturbance is generated and a wake remains that destroys the original free surface and produces a new wake. In order to study the mechanism and characteristics of the wave-making wake generated by the maneuvering motion ...
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Wenyu Sun, Qiong Hu, Shiliang Hu, Jia Su, Jie Xu, Jinfang Wei and Guofu Huang
Accurate prediction of the self-propulsion performance is one of the most important factors for the energy-efficient design of a ship. In general, the hydrodynamic performance of a full-scale ship could be achieved by model-scale simulation or towing tan...
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