|
|
|
|
|
Bonaventura Tagliafierro, Simone Mancini, Pablo Ropero-Giralda, José M. Domínguez, Alejandro J. C. Crespo and Giacomo Viccione
Computational Fluid Dynamics simulations of planing hulls are generally considered less reliable than simulations of displacement hulls. This is due to the flow complexity around planing hulls, especially in the bow region, where the sprays are formed. T...
ver más
|
|
|
|
|
|
|
|
|
|
|
Filippo Cucinotta, Dario Mancini, Felice Sfravara and Francesco Tamburrino
The use of ventilated hulls is rapidly expanding. However, experimental and numerical analyses are still very limited, particularly for high-speed vessels and for stepped planing hulls. In this work, the authors present a comparison between towing tank t...
ver más
|
|
|
|
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
Azim Hosseini, Sasan Tavakoli, Abbas Dashtimanesh, Prasanta K. Sahoo and Mihkel Kõrgesaar
This paper presents CFD (Computational Fluid Dynamics) simulations of the performance of a planing hull in a calm-water condition, aiming to evaluate similarities and differences between results of different CFD models. The key differences between these ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Angus Gray-Stephens, Tahsin Tezdogan and Sandy Day
This study investigates the level of accuracy with which Computational Fluid Dynamics (CFD) is capable of modelling the nearfield longitudinal wake profiles of a high-speed planing hull. It also looks to establish how various set-ups influence the accura...
ver más
|
|
|
|
|
|
|
|
|
|
|
Emre Kahramanoglu, Ferdi Çakici and Ali Dogrul
The evaluation of the hydrodynamic performance of planing vessels has always been one of the most attractive study fields in the maritime agenda. Resistance and self-propulsion studies have been performed using experimental and numerical methods by resea...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lei Du, Zhuang Lin, Yi Jiang, Ping Li and Yue Dong
This article discusses the scale effects on a planing boat, utilizing the computational fluid dynamics method. The simulation is compared with a tank test for verification and validation. The planing boat sails use both aerodynamics and hydrodynamics. St...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jin Zou, Shijie Lu, Yi Jiang, Hanbing Sun and Zhuangzhuang Li
In the current hydrodynamic research relating to planing hulls, the stern flap and steps are generally considered to be two independent resistance reduction measures. Limited research has focused on the coupled effects of flaps and steps. Therefore, expe...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nikolaos I. Xiros, Vasileios Tzelepis and Eleftherios K. Loghis
A simulation model for a prismatic hard-chine planing hull watercraft (V-shaped keel with constant deadrise) with propulsion based on a 3-phase induction motor connected directly to surface-piercing propeller (SPP) and outfitted with a motor rotational s...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rasul Niazmand Bilandi, Simone Mancini, Luigi Vitiello, Salvatore Miranda and Maria De Carlini
In the current article, the hydrodynamic forces of single-stepped planing hulls were evaluated by an analytical method and compared against towing tank tests. Using the 2D + T theory, the pressure distribution over the wedge section entering the water an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rasul Niazmand Bilandi, Simone Mancini, Luigi Vitiello, Salvatore Miranda and Maria De Carlini
In the current article, the hydrodynamic forces of single-stepped planing hulls were evaluated by an analytical method and compared against towing tank tests. Using the 2D + T theory, the pressure distribution over the wedge section entering the water an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rasul Niazmand Bilandi, Simone Mancini, Luigi Vitiello, Salvatore Miranda and Maria De Carlini
In the current article, the hydrodynamic forces of single-stepped planing hulls were evaluated by an analytical method and compared against towing tank tests. Using the 2D + T theory, the pressure distribution over the wedge section entering the water an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jin Zou, Shijie Lu, Hanbing Sun, Liru Zan and Jiuyang Cang
In this study, a high-speed planing trimaran hull form is designed, and the effects of different displacements and gravity longitudinal layouts on the performance of the trimaran planing hull in calm water are experimentally investigated in the towing ta...
ver más
|
|
|
|
|
|
|
|
|
|
|
Miles P. Wheeler, Konstantin I. Matveev and Tao Xing
Hard-chine boats are usually intended for high-speed regimes where they operate in the planing mode. These boats are often designed to be relatively light, but there are special applications that may occasionally require fast boats to be heavily loaded. ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Guangsheng Su, Hailong Shen and Yumin Su
The central hull is the most important structure in the planing trimaran. In order to gain insight into the relationship between hydrodynamic performance and main hull shape, experimental tests and numerical simulations were carried out for volume Froude...
ver más
|
|
|
|
|
|
|
|
|
|
|
Luis Daniel Leal-Ruiz, Clara Paola Camargo-Díaz, Edwin Paipa-Sanabria, Claudia Castro-Faccetti and John E. Candelo-Becerra
Hydrodynamic performance is an essential factor in the design of a watercraft, and the navigation scenario determines the complexity of its operation. This study aims to identify the effect of speed and length on the hydrodynamic behavior of a semi-plani...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fatemeh Roshan, Sasan Tavakoli, Simone Mancini and Abbas Dashtimanesh
A tunneled planing craft is a high-speed boat with two tunnels over the hull bottom that are designed to improve the vessel?s performance. Hydrodynamic performance of tunneled planing hulls in calm-water is well-known, however, current information on wav...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seongik Han
In this study, we investigate a terminal sliding mode control (TSMC) system combined with predefined-time and prescribed-performance control methods for an unmanned planing hull (UPH) system in the presence of a control input delay at the heading axis an...
ver más
|
|
|
|
|
|