Numerical Simulation Research on the Anchor Last Deployment of Marine Submersible Buoy System Based on VOF Method

Chen, Xiaohan; Liu, Bing; Le, Guigao

doi:10.3390/jmse10111681

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…Wang B. [6] conducted a restored pose simulation for a 6000m deep anchor submersible system. Yan Q. X.…”

Section: Introductionmentioning

confidence: 99%

Research on movement law of the deployment process for submerged mooring system

Xiao,

Liu,

Qian

et al. 2023

J. Phys.: Conf. Ser.

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Safe deployment is the premise of submerged mooring system before it is put into use. In this paper, on the basis of analyzing the deployment process of the full ocean depth submerged mooring system, a calculation model of the laying process is established, and the influence law of the laying movement of the submerged mooring system, under two working conditions of deployment in the deep sea and deployment in the shallow sea, is analyzed and studied. The relevant results have certain guiding significance for the design and engineering application of the submerged mooring system.

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“…Wang B. [6] conducted a restored pose simulation for a 6000m deep anchor submersible system. Yan Q. X.…”

Section: Introductionmentioning

confidence: 99%

Research on movement law of the deployment process for submerged mooring system

Xiao,

Liu,

Qian

et al. 2023

J. Phys.: Conf. Ser.

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“…Zhenming et al [20] applied a CFD approach combining LES modeling with free surface capture VOF techniques to simulate a primary split in a high-speed diesel jet. Xiaohan et al [21] used the VOF method to track the inlet process of an ocean submersible buoy, studied the final deployment process of the anchor, and obtained the velocity changes, mechanical behavior, and fluid velocity changes of the three components through numerical simulations.…”

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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“…Then (2022), numerical investigations were conducted to examine the performance of the CALM buoy [26]. Xiaohan Chen et al ( 2022) conducted a research investigation on the deployment of submersible buoys utilizing the VOF method and lumped mass method [27]. Dongdong Han et al ( 2022) applied a method for designing a tuned mass damper as a passive structural control strategy for semi-submersible floating offshore wind turbines [28].…”

Section: Introductionmentioning

confidence: 99%

“…It can be seen from the completed research that direct CFD simulation on a submersible buoy system is feasible [27]. However, when the submersible buoy system is deployed in a sea area that is hundreds of meters deep, the computational area is too large.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Objective Optimization of the Anchor-Last Deployment of the Marine Submersible Buoy System Based on the Particle Swarm Optimization Algorithm

Chen

Liu

2023

JMSE

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Marine submersible buoy systems hold significant value as critical equipment in marine science research. This study examines a marine submersible buoy system that includes an anchor block, mooring line, battery compartment, power supply cable, and submersible buoy. The anchor-last deployment method is a conventional strategy for deploying marine submersible systems. Initially, the other components are positioned on the sea surface, followed by the deployment of the anchor block from the ship’s deck. The anchor block will pull the battery compartment and submersible buoy into the water and eventually sink to the seabed. In this deployment process, ocean currents have a relatively large impact on the anchor block’s landing position. Increasing the weight of the anchor block will make the anchor block land on the seabed sooner, which can minimize the impact of ocean currents. However, an overabundance of weight can generate a significant strain on both the cables, potentially resulting in cable breakage. In order to find the parameters that can make the anchor block reach the seabed as soon as possible and ensure that the tension force of the cables does not exceed the maximum, a dynamic model of the deployment process is established based on computational fluid dynamics (CFD) and solved using the Runge–Kutta method of the fourth order. Particle swarm optimization is employed to optimize the key parameters. The penalty function is used to constrain the particle space. The findings indicate that the utilization of particle swarm optimization is efficacious for optimizing the parameters of submersible buoy systems for marine applications. Optimized parameters allow the anchor block to reach the seafloor quickly and the tension on the cables to not exceed the given value.

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Numerical Simulation Research on the Anchor Last Deployment of Marine Submersible Buoy System Based on VOF Method

Cited by 4 publications

References 20 publications

Research on movement law of the deployment process for submerged mooring system

Research on movement law of the deployment process for submerged mooring system

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

A Multi-Objective Optimization of the Anchor-Last Deployment of the Marine Submersible Buoy System Based on the Particle Swarm Optimization Algorithm

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