Investigation of vessel resistance in model scale brash ice channels and comparison to full scale tests

Matala, Riikka; Suominen, Mikko

doi:10.1016/j.coldregions.2022.103617

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…Results FSICR Results HSVA (12) where n is the test number. For MAPE and RMSE, zero shows perfect accuracy, and a significant positive value indicates poor prediction.…”

Section: Theoretical Predictionsmentioning

confidence: 99%

“…Moreover, both theoretical and empirical methods require a large amount of measured data. The performance of such methods varies for different hull shapes [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…The model test in ice tanks is an efficient way to predict ship ice resistance due to the merit of providing reliable data [10,12]. However, model tests also have some limitations.…”

Section: Introductionmentioning

confidence: 99%

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A Numerical Prediction of the Resistance of Bulk Carriers in Brash Ice Channels

Sun

Zhang

et al. 2023

JMSE

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Ship resistance increases significantly when navigating a brash ice channel. In this study, the numerical method is applied to predict the full-scale ship resistance of bulk carriers in brash ice channels. The viscous flow computational fluid dynamics (CFD) solver was coupled with the discrete element method (DEM) to establish the brash ice model. The Euler multiphase flow’s volume of fluid (VOF) model was applied to simulate the interaction between the ship and water. The ship–brash ice interaction was simulated. Predictions of ships’ total resistance based on the numerical method and the Finnish Swedish ice class rules (FSICR) method were compared with the experimental results carried out in Hamburg Ship Model Basin (HSVA) ice tank. The numerical resistance shows a good agreement with the HSVA experiment reports and a better performance than the FSICR method. The present study shows that the numerical method could provide reasonable and practical ice resistance predictions for engineering applications.

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“…Results FSICR Results HSVA (12) where n is the test number. For MAPE and RMSE, zero shows perfect accuracy, and a significant positive value indicates poor prediction.…”

Section: Theoretical Predictionsmentioning

confidence: 99%

“…Moreover, both theoretical and empirical methods require a large amount of measured data. The performance of such methods varies for different hull shapes [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Numerical Prediction of the Resistance of Bulk Carriers in Brash Ice Channels

Sun

Zhang

et al. 2023

JMSE

View full text Add to dashboard Cite

show abstract

“…However, these simulations are based on a model scale, and the correction method from model-scale results to full-scale results is an important issue. The traditionally employed scaling methods, such as maintaining the Froude and Cauchy similitudes, might not be the optimal solution in tests conducted in broken ice, as the interaction of ice fragments becomes a significant factor in ship resistance [1,7]. Thus, conducting full-scale simulations proves to be an effective method.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study on Ship–Ship Interference in Formation Navigation in Full-Scale Brash Ice Channels

Xie

Zhou

et al. 2023

JMSE

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Formation navigation in brash ice channels is increasingly utilized by merchant vessels in the Arctic and Baltic Sea, offering benefits such as improved efficiency and reduced carbon emissions. However, ship–ship interference poses a significant challenge to this method, impacting resistance performance. This paper presents full-scale simulations using the CFD–DEM coupling method in brash ice channels, which is validated by comparing simulation results with ice tank measurements. By varying the distance between two ships from 0.05 to 5 ship lengths, ship–ship interference in full-scale brash ice channels is analyzed using the CFD–DEM coupling strategy. The study examines hydrodynamic and ship–ice interactions, ice resistance effects, and simulation results. It is found that ship-to-ship distance significantly influences the velocity field, dynamic pressure distribution on the hull, and hydrodynamic interaction forces. Distances less than one ship length result in increased water resistance for the forward ship and decreased resistance for the rear ship. The forward ship demonstrates favorable interference with the ice accumulation of the rear ship. When distances are less than two ship lengths, the ice resistance of the forward ship remains mostly unaffected, while the ice resistance of the rear ship decreases as the distance decreases. These insights enhance our understanding of ship–ship interference in formation navigation, aiding in the optimization of brash ice channel navigation strategies.

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Scaling principles for model testing in old brash ice channel

Matala

Suominen

2023

Cold Regions Science and Technology

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Investigation of vessel resistance in model scale brash ice channels and comparison to full scale tests

Cited by 7 publications

References 9 publications

A Numerical Prediction of the Resistance of Bulk Carriers in Brash Ice Channels

A Numerical Prediction of the Resistance of Bulk Carriers in Brash Ice Channels

Numerical Simulation Study on Ship–Ship Interference in Formation Navigation in Full-Scale Brash Ice Channels

Scaling principles for model testing in old brash ice channel

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