A Study on the Risk of Propeller Cavitation Erosion Using Convolutional Neural Network

Ji-Hye Kim, Hyoungseok Lee, Jea-Wook Hur

Cavitation erosion is one of the major factors causing damage by lowering the structural strength of the marine propeller and the risk of it has been qualitativ...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.129

A Study on Standardization of Fracture Strength of Secondary Barrier of FSB in MARK-III LNG CCS using Weibull Distribution

Yeon-Jae Jeong, Hee-Tae Kim, Jeong-Dae Kim, Hoon-Gyu Oh, Yong-Tai Kim, Seong-Bo Park, Jae-Myung Lee

In this study, the fracture strength of Flexible Secondary Barrier (FSB) composites was standardized by conducting a distribution analysis of the fracture proba...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.137

Study on the Evaluation of Frictional Drag Reduction by Air Lubrication and the Arrangement of Air Injection Parts for a Liquefied Natural Gas Carrier

Hee-Taek Kim, Hyoung-Tae Kim, Hyun-Joe Kim, Jung-Joong Kim

Brake Horse Power (BHP) reduction ratios by air injection to the underside of the hull surface in an actual ship are predicted using an unstructured finite-volu...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.144

Study on Prediction of Net Thrust of Multi-Pod-Driven Ice-Breaking Vessel Under Bollard Pull and Overload Conditions According to the Change of Water Depth Using Computational Fluid Dynamics-Based Simulations

JinKyu Kim, Hyoung-Tae Kim, Hee-Taek Kim, Hee-Dong Lee

In this paper, a numerical analysis technique using a body force model is investigated to estimate the available net thrust of multi-pod-driven ice-breaking ves...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.158

An Experimental Study on the Frequency Characteristics of Cloud Cavitation on Naval Ship Rudder

Bu-Geun Paik, Jong-Woo Ahn, Hongseok Jeong, Hanshin Seol, Jae-Yeol Song, Yoon-Ho Ko

In this study, the amount and frequency characteristics of cloud cavitation formed on a navy ship rudder were investigated through cavitation image processing t...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.167

Change of Ice Resistance of Ice-Breaking Tanker According to Frictional Coefficient

Seong-Rak Cho, Sungsu Lee, Yong-Chul Lee, Jong-Gil Yum, Jinho Jang

This study describes the model tests in ice according to the frictional coefficient of an ice-breaking ship and the change in ice resistance by the analysis met...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.175

Influence of TVD Schemes on the Spatial Accuracy of Turbulent Flows Around a Hull When Using Structured and Unstructured Grids

Min Gyeoung Sim, Sang Bong Lee

Computational simulations of turbulent flows around a model ship have been performed to investigate an influence of TVD schemes on the accuracy of advective ter...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.182

Automatic Ship Collision Avoidance in Narrow Channels through Curvilinear Coordinate Transformation

Yonghoon Cho, Jonghwi Kim, Jinwhan Kim

This study addresses autonomous ship collision avoidance in narrow channels using curvilinear coordinates. Navigation in narrow channels or fairways is known to...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.191

A Study on Trim Variation to Reduce the Required Power of 11,000TEU Container Ship in Operation Condition

Joon-Hyoung Lee, Jang-Ho Chun, Myoung-Soo Kim, Beom-Jin Park, Yongwan Yu, Young-Yeon Lee, Haeseong Ahn, Youngsun Kim, Iljin Lim

In this paper, the effect of trim variation on the required power of 11,000TEU container ship was investigated under conditions considering the actual operation...

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DOI: https://doi.org/10.3744/SNAK.2021.58.3.198