Computational fluid dynamics prediction of hydrodynamic forces on a manoeuvring ship including effects of dynamic sinkage and trim

Liu, Yi; Zou, Lu; Zou, Zao-Jian

doi:10.1177/1475090217734685

Cited by 5 publications

(4 citation statements)

References 22 publications

(44 reference statements)

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“…Simultaneously, more tip vortex can be perceived surrounding the hull in Figure12(b). Admittedly, DES method has signature strength in capturing flow details, which is accord with conclusion from published literatures[17]. For the sake of investigation on flow separation and vortex shedding, DES turbulence model is preferable to analyze the effect of vortical structures on acting force and moment.IOP Publishing doi:10.1088/1757-899X/1288/1/012049 13 (a) RANS method (b) DES method…”

supporting

confidence: 80%

“…The acquisition of hydrodynamic derivatives by means of CFD methods has attracted great attention from academic and industrial fields. Researchers conducted CFD simulation on captive tests such as OTT [8], circular motion test (CMT) [9] and planar motion mechanism (PMM) [10], and made comparison with experiments for verification. Various computation settings could lead to diverse prediction results.…”

Section: Introductionmentioning

confidence: 99%

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Study of Influencing Factors on CFD Method and Separated Flow by the Virtual Static Captive Test

Yang¹,

Zeng²,

Chu³

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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In this paper, Computational Fluid Dynamic (CFD) methods are adopted to predict the manoeuvring behaviour of the KCS benchmark model. At first instance, the model is calibrated on the basis of three factors namely (a) turbulence model, (b) grid size and (c) time step. Secondly, a Static Oblique Towing Test (OTT) that utilises the SST K-ω turbulence model with a grid number of 1.64 million and a time step of 0.01 s is conducted. The maximum difference of the lateral force between the port and starboard ship sides is observed at x/Lpp = 0.055. Finally, application of Reynold Averaged Navier Stokes (RANS) and Dettached Eddy Simulation (DES) CFD models indicates that the latter may be preferable in terms of capturing the oblique flow field.

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supporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Study of Influencing Factors on CFD Method and Separated Flow by the Virtual Static Captive Test

Yang¹,

Zeng²,

Chu³

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…As above presented, the known turbulent model SST k-ω has been usually used to predict ship resistance. The theatrical approach of determining these parameters by the characteristics of the given hull form is presented based on flowing the empirical equations [18]:…”

Section: B Determining the Appropriate Turbulent Modelmentioning

confidence: 99%

Improving the Accuracy of Ship Resistance Prediction Using Computational Fluid Dynamics Tool

Huynh

Tran

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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The ship resistance prediction using CFD tool has become an accepted method over the last decade; however, the CFDbased ship resistance results are not always accurate. This paper presents the approach of determining the input parameters of the CFD solution for ship resistance prediction, including of size and boundary conditions of the computational domain, and parameters of turbulent model in accordance with the geometric characteristics of hull to improve the accuracy of CFD-based resistance values for a specific ship type. Two same type of fishing vessels named FAO 72 and FAO 75 which are tested in towing tank are chosen as the computed ship to apply this approach for resistance prediction accurately. The CFD-based resistance results of these vessels are compared with corresponding model testing results to analyze accuracy and reliability of this approach as well as discussing the effect of the initial parameters of the CFD solution on the resistance results as mentioned. The research results shown that the accuracy of three dimensions (3D) model of computational ship, the appropriate values of computational domain size and turbulent model parameters for resistance prediction using CFD are the input factor to improve the accuracy of resistance values. Especially the specific values of computational domain size and turbulent model parameters are presented in this paper will be the input parameters to predict the resistance using CFD for the fishing vessels with the same geometric characteristics as the computed ship.

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“…Shenoi, Krishnankutty, and Selvam (2016) numerically studied the maneuvering qualities of S175 using the derivatives obtained by a RANS-based solver, with the nonlinear and roll-coupled effects being taken into account. Liu, Zou, and Zou (2017) analyzed the effect of dynamic sinkage and trim on the hydrodynamic forces and hydrodynamic derivatives by numerically simulating static captive model tests. Guo and Zou (2017) conducted a system-based investigation on four degrees of freedom (4-DOF) ship maneuvering in calm water for the ONR tumblehome model by RANS simulation of captive model tests.…”

Section: Introductionmentioning

confidence: 99%

Predictions of ship maneuverability based on virtual captive model tests

Liu

Zou

et al. 2018

Engineering Applications of Computational Fluid Mechanics

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Maneuverability is an important hydrodynamic performance of a ship, and should be taken into account during the ship design stage. The present study of Computational Fluid Dynamic (CFD) calculations aims to offer a numerical tool for maneuvering prediction with high accuracy. The virtual captive model tests for a model scale KCS container ship are conducted using unsteady Reynolds-averaged Navier-Stokes (RANS) computation to obtain the full set of linear and nonlinear hydrodynamic derivatives in the 3rd-order Abkowitz model. The numerical uncertainty analysis is carried out for the pure sway and yaw-drift tests to verify the numerical accuracy. It is concluded that the lower order Fourier coefficients are preferred in the computation of the hydrodynamic derivatives. Moreover, part of the computed hydrodynamic forces and moments are compared with the available captive model test data, and good agreement is obtained. By substituting the computed hydrodynamic derivatives into the mathematical model, the standard turning and zigzag maneuvers are predicted. By comparing the predicted maneuvering results with the available experimental data and the prediction results by others, it is demonstrated that acceptable prediction accuracy can be achieved with the present method, which shows the effectiveness of the present method in predicting ship maneuverability. ARTICLE HISTORY

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Computational fluid dynamics prediction of hydrodynamic forces on a manoeuvring ship including effects of dynamic sinkage and trim

Cited by 5 publications

References 22 publications

Study of Influencing Factors on CFD Method and Separated Flow by the Virtual Static Captive Test

Study of Influencing Factors on CFD Method and Separated Flow by the Virtual Static Captive Test

Improving the Accuracy of Ship Resistance Prediction Using Computational Fluid Dynamics Tool

Predictions of ship maneuverability based on virtual captive model tests

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