CFD simulations of free running ship under course keeping control

Wang, Jianhua; Zou, Lu; Wan, Decheng

doi:10.1016/j.oceaneng.2017.06.052

Cited by 72 publications

(25 citation statements)

References 17 publications

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“…The naoe-FOAM-SJTU solver was further extended to the application involving waves. Wang et al (2017) extended the free-running simulations from calm water to waves for a course-keeping maneuver and showed the capability of CFD with dynamic overset grid in predicting ship maneuvering in waves. The self-propulsion model point was used for the freerunning computation under course-keeping control in waves, where three regular waves were considered: head wave, bow quartering wave, and beam wave.…”

Section: Hull-propeller-rudder Interactionmentioning

confidence: 97%

Application Progress of Computational Fluid Dynamic Techniques for Complex Viscous Flows in Ship and Ocean Engineering

Wang

Wan

2020

J. Marine. Sci. Appl.

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Complex flow around floating structures is a highly nonlinear problem, and it is a typical feature in ship and ocean engineering. Traditional experimental methods and potential flow theory have limitations in predicting complex viscous flows. With the improvement of high-performance computing and the development of numerical techniques, computational fluid dynamics (CFD) has become increasingly powerful in predicting the complex viscous flow around floating structures. This paper reviews the recent progress in CFD techniques for numerical solutions of typical complex viscous flows in ship and ocean engineering. Applications to free-surface flows, breaking bow waves of high-speed ship, ship hull-propeller-rudder interaction, vortexinduced vibration of risers, vortex-induced motions of deep-draft platforms, and floating offshore wind turbines are discussed. Typical techniques, including volume of fluid for sharp interface, dynamic overset grid, detached eddy simulation, and fluidstructure coupling, are reviewed along with their applications. Some novel techniques, such as high-efficiency Cartesian grid method and GPU acceleration technique, are discussed in the last part as the future perspective for further enhancement of accuracy and efficiency for CFD simulations of complex flow in ship and ocean engineering.

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Section: Hull-propeller-rudder Interactionmentioning

confidence: 97%

Application Progress of Computational Fluid Dynamic Techniques for Complex Viscous Flows in Ship and Ocean Engineering

Wang

Wan

2020

J. Marine. Sci. Appl.

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“…Although CNWTs are more computationally costly than their lower fidelity counterparts, CNWT experiments can deliver accurate results in high resolution, which is particularly useful for the investigation of specific flow phenomena around coastal and offshore structures. Numerous studies are reported and reviewed in [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22], where CNWTs are employed for the analysis of different marine engineering problems.…”

Section: Computational Fluid Dynamics-based Numerical Wave Tanksmentioning

confidence: 99%

On the Assessment of Numerical Wave Makers in CFD Simulations

Windt

Davidson

Schmitt

et al. 2019

JMSE

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A fully non-linear numerical wave tank (NWT), based on Computational Fluid Dynamics (CFD), provides a useful tool for the analysis of coastal and offshore engineering problems. To generate and absorb free surface waves within a NWT, a variety of numerical wave maker (NWM) methodologies have been suggested in the literature. Therefore, when setting up a CFD-based NWT, the user is faced with the task of selecting the most appropriate NWM, which should be driven by a rigorous assessment of the available methods. To provide a consistent framework for the quantitative assessment of different NWMs, this paper presents a suite of metrics and methodologies, considering three key performance parameters: accuracy, computational requirements and available features. An illustrative example is presented to exemplify the proposed evaluation metrics, applied to the main NWMs available for the open source CFD software, OpenFOAM. The considered NWMs are found to reproduce waves with an accuracy comparable to real wave makers in physical wave tank experiments. However, the paper shows that significant differences are found between the various NWMs, and no single method performed best in all aspects of the assessment across the different test cases.

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“…An example of a work in which the CFD test method was used for an analysis of the aerodynamic drag is the paper [6] in which the drag force generated on the individual elements of the gyrocopter structure was examined. This method can also be used for a hydrodynamic research of the ship or its elements, as shown in [14] and [22]. An alternative method to the CFD technique and one of the most common methods to visualize the medium flow is Particle Image Velocimetry (PIV).…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Aerodynamic Drag Force Exerted on a Powerboat

Czyż¹,

Karpiński

Boujelbene

2020

Adv. Sci. Technol. Res. J.

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The aerodynamics of powerboats used in inshore powerboat racing has a significant impact on their performance. The aerodynamic drag forces generated on individual elements of this type of boats were tested. The solid model of the boat developed in the CAD software was used for the calculations. The computational grid was generated, as well as the boundary conditions and the turbulence model, were determined. On the basis of such assumptions, the numerical calculations were carried out using the CFD method. The results from the numerical simulations consist of a description of the velocity and pressure distribution around the tested object and identification of the drag force on the components of the powerboat with a description of the relationship between them. Additionally, the variation of the drag force as a function of speed in the range from 0 to 60 m/s was presented. The tests were performed for 5 values of the angle of attack of the boat to the surface of water in the range from 0° to 12°. The scope of the research allowed for the development of a drag force map depending on the defined parameters. The test results can be used to optimize the shape of the boat structure in order to reduce the aerodynamic drag generated on its individual elements.

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CFD simulations of free running ship under course keeping control

Cited by 72 publications

References 17 publications

Application Progress of Computational Fluid Dynamic Techniques for Complex Viscous Flows in Ship and Ocean Engineering

Application Progress of Computational Fluid Dynamic Techniques for Complex Viscous Flows in Ship and Ocean Engineering

On the Assessment of Numerical Wave Makers in CFD Simulations

Investigation of the Aerodynamic Drag Force Exerted on a Powerboat

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