A parametric study on the ice resistance of a ship sailing in pack ice based on CFD-DEM method

Tang, Xiang-Jie; Zou, Ming; Zou, Zao-Jian; Li, Zhiyuan; Zou, Lu

doi:10.1016/j.oceaneng.2022.112563

Cited by 15 publications

(5 citation statements)

References 28 publications

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“…The original floe-distribution algorithm was developed to import the natural ice-floe fields into the CFD & DEM model, where the floes were randomly distributed and had a range of sizes according to field measurements. The accuracy of this approach in predicting the ice-floe resistance was experimentally confirmed (Tang et al, 2022).…”

Section: Dynamic Modelmentioning

confidence: 67%

Arctic weather routing: a review of ship performance models and ice routing algorithms

Liu,

Wang,

Zhang

et al. 2023

Front. Mar. Sci.

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With the accelerated melting of the Arctic sea ice, the opening of the Northeast Passage of the Arctic is becoming increasingly accessible. Nevertheless, the constantly changing natural environment of the Arctic and its multiple impacts on vessel navigation performance have resulted in a lack of confidence in the outcomes of polar automated route planning. This paper aims to evaluate the effectiveness of two distinct models by examining the advancements in two essential components of e-navigation, namely ship performance methods and ice routing algorithms. We also seek to provide an outlook on the future directions of model development. Furthermore, through comparative experiments, we have examined the existing research on ice path planning and pointed out promising research directions in future Arctic Weather Routing research.

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Section: Dynamic Modelmentioning

confidence: 67%

Arctic weather routing: a review of ship performance models and ice routing algorithms

Liu,

Wang,

Zhang

et al. 2023

Front. Mar. Sci.

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“…To realistically simulate the collision between the vehicle and ice floes, we use the contact coupling method to calculate the collision between rigid bodies. In previous studies, the majority of scholars have employed either CFD-DEM or CFD-FEM coupling methods [44][45][46][47][48][49] for simulating collision problems. However, these methods introduce complexity to the simulation process.…”

Section: Contact Coupling Methodsmentioning

confidence: 99%

Dynamic Characteristics of an Underwater Ventilated Vehicle Exiting Water in an Environment with Scattered Ice Floes

Zhang,

Lin,

et al. 2023

JMSE

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The presence of ice floes on the water surface has a significant impact on the complex hydrodynamic process of submersible ventilated vehicles exiting the water. In this paper, we propose numerical simulations based on computational fluid dynamics to investigate the process of a ventilated vehicle exiting water in an ice-water mixture. The Schnerr–Sauer model is used to describe the cavitation, while the turbulence is solved by using the k-ω shear stress transport (SST) model. We also introduce the contact coupling method to simulate the rigid collision between the vehicle and the ice floe. We calculated and analyzed the process of the vehicle exiting the water under three conditions: ice-free conditions and in the presence of regularly shaped and irregularly shaped ice floes. The findings indicate that the ice floes contributed to the rapid fragmentation of the water plume to induce the premature collapse of the ventilated cavity and alter its form of collapse. The presence of ice floes intensified the evolution of the flow field close to the vehicle, and their flipping led to a significant volume of splashing water that could have led to the localized secondary closure of the cavity. Moreover, the collision between the vehicle and the ice floes caused pressure pulsations on the surface of the former, with a more pronounced effect observed on the head compared with the cylindrical section. While crossing the ice-water mixture, the vehicle was exposed to water jets formed by the flipping ice floes, which might have led to localized high pressure.

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“…[9] used DEM to process the ice damage pattern and ice load during the interaction between broken ice and structures, and verified the accuracy of the DEM simulation by comparing the experiments, the simulated ice load is in good agreement with the data as measured by the HSVA model test. [10] used a coupled CFD method to solve the fluid flow and DEM to address the ship-ice interaction to predict the ice resistance of a container ship navigating in an ice floe reign, but did not consider the ship and broken ice interaction in a wave environment.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of ice loading characteristics of ships in a wave-current environment in a broken ice area

Sun,

Li,

Shi

2024

J. Phys.: Conf. Ser.

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A numerical simulation technique with CFD-DEM coupling is used to simulate a full-scale KCS model sailing in the pancake ice region. Based on the actual polar information, the Stokes fifth-order wave model is selected. The pancake ice particle of two scales is established based on the DEM, and the corresponding broken-ice region is generated. The contact and collision problems of ice-ice and ice-wall (ship) were analyzed by solving the Hertz-Mindlin model, and the monitored data were processed and summarized. The results show that the ice load on the ship is a repetitive “loading-unloading” process, and the peak ice load curve is characterized by segmented and concentrated fluctuations. In terms of ice parameters, the pancake diameter has a great degree of influence on the crushed ice loads, and the size of the crushed ice loads increases with the diameter of the crushed ice particles.

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A parametric study on the ice resistance of a ship sailing in pack ice based on CFD-DEM method

Cited by 15 publications

References 28 publications

Arctic weather routing: a review of ship performance models and ice routing algorithms

Arctic weather routing: a review of ship performance models and ice routing algorithms

Dynamic Characteristics of an Underwater Ventilated Vehicle Exiting Water in an Environment with Scattered Ice Floes

Numerical simulation of ice loading characteristics of ships in a wave-current environment in a broken ice area

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