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Yue Dong
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China

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Journal article
Published: 05 November 2019 in Journal of Marine Science and Engineering
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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. Studying the performances and wave patterns of different dimensions of the models is the best way to investigate the scale effect without using experimental data. The resistance is discussed in two parts, namely residuary resistance and friction resistance, and is compared to the calculated data using the international towing tank conference (ITTC) formula. The computational fluid dynamics (CFD) calculations of the model are increased by 4.77% on average, and the boat computations are also increased by 3.57%. The computation shows the scale effect in detail. The residuary resistance coefficients at different scales are approximately equal, and the friction resistance coefficients show the scale effect. The scale effect for longitudinal steadiness is also captured for the period of the porpoising behavior. The rational for the full-scaled boat oscillation period and the model is the root of the scales.

ACS Style

Lei Du; Zhuang Lin; Yi Jiang; Ping Li; Yue Dong. Numerical Investigation on the Scale Effect of a Stepped Planing Hull. Journal of Marine Science and Engineering 2019, 7, 392 .

AMA Style

Lei Du, Zhuang Lin, Yi Jiang, Ping Li, Yue Dong. Numerical Investigation on the Scale Effect of a Stepped Planing Hull. Journal of Marine Science and Engineering. 2019; 7 (11):392.

Chicago/Turabian Style

Lei Du; Zhuang Lin; Yi Jiang; Ping Li; Yue Dong. 2019. "Numerical Investigation on the Scale Effect of a Stepped Planing Hull." Journal of Marine Science and Engineering 7, no. 11: 392.

Journal article
Published: 24 July 2019 in Journal of Marine Science and Engineering
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Under the condition of large water immersion, surface-piercing propellers are inclined to be heavy loaded. In order to improve the hydrodynamic performance of the surface-piercing propeller, the installation of a vent pipe in front of a propeller disc is more widely used in the propulsion device of high speed planning crafts. Based on computational fluid dynamics (CFD) method, this paper studied the influence of diverse vent pipe diameters on hydrodynamic performance of the surface-piercing propeller under full water immersion conditions. The numerical results show that, with the increase of vent pipe diameters, the thrust and torque of the surface-piercing propeller decrease after ventilation, and the efficiency of the propeller increases rapidly; the low pressure area near the back root of the blade becomes smaller and smaller gradually; and the peak of periodic vibration of thrust and torque can be effectively reduced. The numerical results demonstrate that the installation of artificial vent pipe effectively improves the hydrodynamic performance of surface piercing propeller in the field of high speed crafts, and the increase of artificial vent pipe diameter plays an active role in the propulsion efficiency of the surface-piercing propeller.

ACS Style

Zeyang Gao; Dongmei Yang; Ping Li; Yue Dong; Gao; Yang; Li; Dong. Numerical Analysis on the Effect of Artificial Ventilated Pipe Diameter on Hydrodynamic Performance of a Surface-Piercing Propeller. Journal of Marine Science and Engineering 2019, 7, 240 .

AMA Style

Zeyang Gao, Dongmei Yang, Ping Li, Yue Dong, Gao, Yang, Li, Dong. Numerical Analysis on the Effect of Artificial Ventilated Pipe Diameter on Hydrodynamic Performance of a Surface-Piercing Propeller. Journal of Marine Science and Engineering. 2019; 7 (8):240.

Chicago/Turabian Style

Zeyang Gao; Dongmei Yang; Ping Li; Yue Dong; Gao; Yang; Li; Dong. 2019. "Numerical Analysis on the Effect of Artificial Ventilated Pipe Diameter on Hydrodynamic Performance of a Surface-Piercing Propeller." Journal of Marine Science and Engineering 7, no. 8: 240.

Journal article
Published: 17 April 2019 in Water
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An accurate analysis of the entire flooding process is critical to assess the damaged stability when a ship encounters distressed accidents such as collision, stranding, or grounding. Among many factors affecting the flooding process and damaged stability, the complex effect of air compression is significant and worthy of further research. In this paper, through establishing scenarios of the damage flooding for a cruise ship, the commercial software CD Adapco STARCCM+ is applied to perform time domain simulation of flooding processes under different ventilation levels. The basic mathematical models about air compression and specific simulation settings of computational fluid dynamics (CFD) are presented in detail. The simulation results show that water ingression results in an increase of air pressure and density inside the flooded compartment. The corresponding air compression can significantly delay the flooding process if the ventilation level is limited to a certain ratio. Finally, the stability of the damaged ship is affected.

ACS Style

Xinlong Zhang; Zhuang Lin; Ping Li; Yue Dong; Fei Liu. Time Domain Simulation of Damage Flooding Considering Air Compression Characteristics. Water 2019, 11, 796 .

AMA Style

Xinlong Zhang, Zhuang Lin, Ping Li, Yue Dong, Fei Liu. Time Domain Simulation of Damage Flooding Considering Air Compression Characteristics. Water. 2019; 11 (4):796.

Chicago/Turabian Style

Xinlong Zhang; Zhuang Lin; Ping Li; Yue Dong; Fei Liu. 2019. "Time Domain Simulation of Damage Flooding Considering Air Compression Characteristics." Water 11, no. 4: 796.