Calm Water Resistance Prediction of a Container Ship Using Reynolds Averaged Navier-stokes Based Solver

Islam, Hafizul; Rahaman, Md. Mashiur; Akimoto, Hiromichi; Islam, Mohammad Rafiqul

doi:10.1016/j.proeng.2017.08.112

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…Before carrying out the longitudinal-launching simulation, the ship resistance in calm water developed by Yang et al [23] and Park et al [24] is simulated and compared with the towing-tank test results to verify and validate the numerical method adopted by Islam et al [25]. The resistance test was carried out in the towing tank of the Dalian University of Technology.…”

Section: Validation Studymentioning

confidence: 99%

Numerical Simulation on Dynamic Characteristics of Longitudinal Launching of Large Container Ships

Liu

Wang

et al. 2022

JMSE

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The upsizing and rapid development of container ships has resulted in many large ships launching in small slipways due to the lagging of advanced equipment. In particular, the dynamic characteristics of these large ships in the longitudinal launching operation under restricted water are yet to be studied in detail. In this study, a ship model to simulate the longitudinal launching process of an 8500 TEU container ship was created based on the URANS method. The ship resistance in calm water was determined and validated against the experimental data. The influence of the stern appendage on the ship’s resistance and the flow field around the hull, with and without the aft poppet, under various water-depth-to-draught ratios was analyzed. A comparison of the ship’s resistance between the numerical and the experimental data shows that the difference is minimal, within 1.5%. The numerical results revealed that the aft poppets change the flow pattern and effectively reduce the pressure drag in the drifting stage. The shallow water causes a restraining effect on the ship. The proposed analytical approach in the numerical analysis, considering the aft poppet and the water depth, could provide a better simulation for a large ship’s longitudinal launching operation.

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Section: Validation Studymentioning

confidence: 99%

Numerical Simulation on Dynamic Characteristics of Longitudinal Launching of Large Container Ships

Liu

Wang

et al. 2022

JMSE

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“…Of these, water resistance can be categorized into calm water resistance and added resistance in waves [3]. Calm water resistance prediction is the estimation of drag force on a ship while moving forward in calm water [4]. Calm water resistance is closely related to the characteristics of the flow field around the ship, and is one of the important factors affecting the speed and energy consumption of the ship.…”

Section: Introductionmentioning

confidence: 99%

Numerical Prediction of Ship Resistance Based on Volume of Fluid Implicit Multi-Step Method

Wang,

Rao,

Liu

et al. 2023

JMSE

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The Volume of Fluid (VOF) method is used in two-phase fluid flow problems of ship hydrodynamic calculations, to capture the motion and distribution of the gas–liquid free surface. To ensure solution stability and accuracy, numerical simulations typically require separate mesh refinement for the free surface or a reduced time step, resulting in a significant increase in solution time. This study aims to compare the drag and vessel attitude change calculations of the VOF implicit multi-step method with the traditional single-step method, and to verify the feasibility of the method in the numerical prediction of ship resistance and flow field analysis. The results show that an implicit multi-step method with a reasonable number of internal iterations could obtain results close to those of the single-step method with a reduced time step, and the error in trim angle was relatively large, about 2%, but the solving time was only about half that of the latter. The method could also capture the shape and location of waves on the hull, especially in the vicinity of the ship, while the distribution of the waves in the far field differed from those in the experiments to some extent.

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A Primer of Inland Vessel Maneuverability

Liu

2020

Mathematical Modeling of Inland Vessel Maneuverability Considering Rudder Hydrodynamics

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Calm Water Resistance Prediction of a Container Ship Using Reynolds Averaged Navier-stokes Based Solver

Cited by 8 publications

References 4 publications

Numerical Simulation on Dynamic Characteristics of Longitudinal Launching of Large Container Ships

Numerical Simulation on Dynamic Characteristics of Longitudinal Launching of Large Container Ships

Numerical Prediction of Ship Resistance Based on Volume of Fluid Implicit Multi-Step Method

A Primer of Inland Vessel Maneuverability

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