Virtual simulation of maneuvering captive tests for a surface vessel

Hajivand, Ahmad; Mousavizadegan, S. Hossein

doi:10.1515/ijnaoe-2015-0060

Cited by 33 publications

(14 citation statements)

References 11 publications

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“…In simple terms, simulations of the fluid flow motion near the body may come with those coefficients too. The procedure for obtaining these coefficients from CFD simulation is described in Hajivand and Mousavizadegan 34,35…”

Section: Maneuvering Problemmentioning

confidence: 99%

Prediction of the maneuvering behavior of a containership in a seaway

Bachari

Hajivand

Hasani

2023

Proceedings of the Institution of Mechanical Engineers, Part M:

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This study investigated the turning maneuver performance of a containership in regular waves using a two-time scale formulation. This article also presents a ship motion program, coupled with a 3-degree of freedom (3-DOF) maneuvering solver, whereby the seakeeping problem is solved with the forward speed considered in the computations. Captive tests were simulated in a computational fluid dynamics (CFD) environment to obtain the maneuvering derivatives. A near-field analysis was performed to obtain the effective wave force, which was the second-order mean drift force in this analysis. The proposed method was used to estimate the turning circle maneuver performance of the S-175 containership in both calm water and waves of different wavelengths. Ultimately, the simulation results showed high consistency with experimental data.

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Section: Maneuvering Problemmentioning

confidence: 99%

Prediction of the maneuvering behavior of a containership in a seaway

Bachari

Hajivand

Hasani

2023

Proceedings of the Institution of Mechanical Engineers, Part M:

Self Cite

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“…where φ 0 and ω are the roll angle displacement for the sinusoidal motion and circular frequency of the pure roll motion, respectively. Figure 2 shows an example of sinusoidal motion of pure roll, which describes the relationship between roll angle, rate, and acceleration in Equation (1). The amplitude of roll rate is shifted 90 • in phase compared to the roll angle, while the amplitude of the roll acceleration is the same phase as the roll angle, but in the opposite direction.…”

Section: Pure Roll Simulationmentioning

confidence: 99%

“…The roll moment of a ship has been a prime concern due to being the most dangerous among the 6-DoF, which has the possible consequences of instability and ship capsize. In general, the roll moment has usually been ignored when analyzing the maneuverability of the ship with low GM and high-speed ships, such as the KCS, DTMB, and ONRT, according to Hajivand et al [1], Liu et al [2], Franceschi et al [3], and Li et al [4]. However, it is widely known that the effect of the roll moment becomes significant for surface ships with small GM and high speed.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Roll Derivatives of Different Surface Ships Based on Numerical Pure Roll Simulation

Mai

Vo²,

Yoon³

et al. 2022

JMSE

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Among the 6 degrees of freedom (6-DoF), excessive roll motion is the most dangerous cause of ships capsizing. However, when analyzing the maneuverability of surface ships, the roll components have usually been ignored. It is widely known that the influence of roll moment becomes significant for surface ships with low GM (metacentric height) and high speed. This paper examines the pure roll test for several surface ships to assess the roll-related hydrodynamic derivatives of added mass and damping in maneuvering. The objective ships are the KRISO Container Ship (KCS), David Taylor Model Basin (DTMB), Office of Naval Research Tumblehome (ONRT), and Delft 372 catamaran, where the DTMB and ONRT ships are equipped with complementary bilge keels as damping devices and have a small GM, which the Delft 372 catamaran does not have. The flow during pure roll is analyzed by the Computational Fluid Dynamics (CFD) simulation method that allows the complex flow around ships to be captured, especially when the bilge keel and skeg are considered. The results indicate that the roll moment is greatest in the catamaran. Since the roll moments of the DTMB and ONRT are larger than that of the KCS, bilge keels and surface shape also contribute to increasing roll damping moment. In addition, a comparison of the damping derivatives due to roll rate with results obtained from another method indicates that CFD simulation is capable of accurately predicting the roll-related derivatives, which is difficult to perform by the experiment method.

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“…The characteristics of maneuvering ice loads in level ice are a matter of considerable importance, but the knowledge is still limited. In open water, captive model tests are a common method to establish a hydrodynamic model for predicted ship maneuverability [42]. Therefore, this paper researched the influences of drift angle and turning radius on ice loads by simulating the maneuvering captive motion in level ice.…”

Section: Introductionmentioning

confidence: 99%

Numerical Research on Global Ice Loads of Maneuvering Captive Motion in Level Ice

Xuan

Zhan

Liu

et al. 2021

JMSE

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In level ice, the maneuvering motion of icebreakers has a major influence on the global ice loads of the hull. This study researched the influences of the drift angle and turning radius on the ice loads of the icebreaker Xue Long through a partial numerical method based on the linear superposition theory of ice loads. First, with reference to the Araon model tests performed by the Korea Research Institute of Ships and Ocean Engineering (KRISO), numerical simulations of Araon’s direct motion were carried out at different speeds, and the average deviation between numerical results and model test results was about 13.8%. Meanwhile, the icebreaking process and modes were analyzed and discussed, compared with a model test and a full-scale ship trial. Next, the maneuvering captive motions of oblique and constant radius were simulated to study the characteristics of ice loads under different drift angles and turning radii. Compared with the maneuvering motion model tests in the ice tank of Tianjin University and the Institute for Ocean Technology of the National Research Council of Canada (NRC/IOT), the numerical results had good agreement with the model test results in terms of the variation trend of ice loads and ice–hull interaction, and the influences of drift angle and turning radius on ice resistance and transverse force, which have a certain reference value for sailing performance research and the design of the hull form of icebreaker ships, are discussed.

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Virtual simulation of maneuvering captive tests for a surface vessel

Cited by 33 publications

References 11 publications

Prediction of the maneuvering behavior of a containership in a seaway

Prediction of the maneuvering behavior of a containership in a seaway

Assessment of the Roll Derivatives of Different Surface Ships Based on Numerical Pure Roll Simulation

Numerical Research on Global Ice Loads of Maneuvering Captive Motion in Level Ice

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