Numerical investigation on the effect of trim on ship resistance by RANSE method

Le, Tat-Hien; Bich, Vu Ngoc; Phuong, Nguyen Kim; Hà, Nguyễn Thị Hải; Chuan, Tran Quoc; Tu, Tran Ngoc

doi:10.1016/j.apor.2021.102642

Cited by 32 publications

(28 citation statements)

References 10 publications

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“…This indicates that the increase in the resistance of shallow water is mainly caused by residual drag [14] . The increase in residual resistance in shallow water is mainly related to the changing of the flow field properties [15] . Due to the large block coefficient of this ship, the flow expands and accelerates in the process of moving towards the stern, increasing flow separation in shallow water.…”

Section: Experiments Resultsmentioning

confidence: 99%

Experiment and numerical simulation study on resistance performance of the shallow-water seismic survey vessel

Xiong

et al. 2023

Ocean Engineering

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Section: Experiments Resultsmentioning

confidence: 99%

Experiment and numerical simulation study on resistance performance of the shallow-water seismic survey vessel

Xiong

et al. 2023

Ocean Engineering

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“…The motion of the ship with two degrees of freedom (heaving and pitching motion) is captured during the computation by using the dynamic fluid body interaction (DFBI) equilibrium option. All Y+ wall treatment was used for the simulation [23].…”

Section: Numerical Setupmentioning

confidence: 99%

Numerical Investigation of Length to Beam Ratio Effects on Ship Resistance Using Ranse Method

Anh

et al. 2023

Polish Maritime Research

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The paper discusses the length to beam (L/B) ratio effects on ship resistance at three different Froude numbers using unsteady RANSE simulation. First, the JBC ship model was used as an initial hull form for verification and validation of predicted ship resistance results with measured data, and then the influence of the L/B ratio on ship resistance was carried out. Ship hull forms with different L/B ratios were produced from the initial one by using the Lackenby method. The numerical results obtained show the L/B ratio’s effect on ship resistance. Increases of the L/B ratio led to gradual reduction of the total ship resistance and vice versa. Analysis of the changing of the resistance components indicates that the pressure resistance changes are considerably larger than the frictional one. Finally, the paper analyses the difference in the flow field around the hull of the ship with variation of the L/B ratio to fully understand the physical phenomenon in the change of ship resistance at different L/B parameters.

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“…The resistance analysis uses Savitsky's method. Several factors influence ship resistance, including keel condition, sub-merged hull form at the bow and stern, wetted surface area, and length of water line (LWL) [13]. The discussion of ship hull with the hydrodynamic characteristics in numerical planning and calculation to find wet areas, drag, pressure centers, stability, and resistance that can function at speed, deadrise angle, and trim [14].…”

Section: Hull Resistance Analysismentioning

confidence: 99%

Fast ship prototype design simulation with fin stabilizer on hydrodynamic characteristics for ship realization planning

Diatmaja

Prabowo

Muhayat

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to determine the effect of adding variations of fin stabilizers on the hydrodynamic characteristics of the ship design. It compares the hull without modification with the hull modified by a fin stabilizer on a prototype scale. The results of this study is assessed to obtain the best performance of ships with various models to be used in the design of ship realization. The research method is conducted by numerical approach, including simulation of resistance, stability, and seakeeping. The hull design references chosen are the Fast Police Boat and SMIT Patrol Boat with a Length Overall value of 1 m. The fin stabilizer uses hydrofoil type NACA-0015 with an aspect ratio of 0.7. Then the length variations are 3 cm, 4 cm, and 5 cm, with angle variations being 25°, 30°, and 35°. The results showed that adding a fin stabilizer could increase the ship’s stability. The best fin stabilizers variations are fins with a length of 5 cm and an angle of 30° for the prototype design of the Fast Police Boat hull and fins with a length of 5 cm and an angle of 35° for the prototype design of the SMIT Patrol Boat hull.

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Numerical investigation on the effect of trim on ship resistance by RANSE method

Cited by 32 publications

References 10 publications

Experiment and numerical simulation study on resistance performance of the shallow-water seismic survey vessel

Experiment and numerical simulation study on resistance performance of the shallow-water seismic survey vessel

Numerical Investigation of Length to Beam Ratio Effects on Ship Resistance Using Ranse Method

Fast ship prototype design simulation with fin stabilizer on hydrodynamic characteristics for ship realization planning

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