Wave and Wave Board Motion of Hybrid Wave Maker

Hyochul Kim, Jungkeun Oh, Jae-Moon Lew, Shin Hyung Rhee, Jae Heon kim

Piston type wave makers or flap type wave makers are usually adopted as a wave maker which disturbing the fluid domain with sinusoidal motion. Recently hybrid w...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.339

Investigation on the Generalized Hydrodynamic Force and Response of a Flexible Body at Different Reference Coordinate System

Kyeonguk Heo, Yoon-Rak Choi

In this paper, the generalized hydrodynamic force and response of a flexible body are calculated at different reference coordinate systems. We generalize the eq...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.348

A Study on Development of Sway Velocity Reference Model During Auto-berthing/Unberthing Through Analysis of Ship’s Berthing/Unberthing Data

Jung-Hyeon Kim, Hyun-Jae Jo, Su-Rim Kim, Jun-Ho Lee, Jong-Yong Park

Crabbing motion is a pure sway motion with only sway velocity. The ship’s crabbing motion is essential for an ideal berthing/unberthing process. The unberthing ...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.358

Study on the Speed-Power Characteristics Through a Speed Trial of a Large Container Vessel During a Commercial Voyage Part I

Ho Kim, Joon-Hyoung Lee, Jin-Ho Jang, Hae-Seong Ahn, Dae-Youl Kang, Sang-Su Byeon

This paper presents the analysis of the speed-power performance in the real sea using a large container vessel data provided as a test bed from a shipping compa...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.366

Study on Sound Transmission Characteristics by the Delamination of Acoustic Window

Byung-Kyoo Jung, Myunghwan Kang, Youngsoo Seo

This paper investigated sound characteristics by the delamination of an acoustic window. In detail, acoustic scattering and transmission characteristics on the ...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.375

Development of Wave Height Field Measurement System Using a Depth Camera

Hoyong Kim, Chanil Jeon, Jeonghwa Seo

The present study suggests the application of a depth camera for wave height field measurement, focusing on the calibration procedure and test setup. Azure Kine...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.382

Experimental Study of the Flat & Twisted Rudder Characteristics Using Rudder Dynamometer in LCT

Jong-Woo Ahn, Bu-Geun Paik, Young-Ha Park, Han-Shin Seol

In order to investigate force and cavitation characteristics for the flat & twisted rudders in the Large Cavitation Tunnel (LCT), the rudder dynamometer was des...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.391

A Study on Inelastic Whipping Responses in a Navy Ship by Underwater Explosion

Hyunwoo Kim, Jae Hoon Seo, Joonmo Choung

The primary effect of the far-field underwater explosion (UNDEX) is the whipping of the ship hull girder. This paper aims to verify why inelastic effects should...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.400

An Experimental Study on the Change in Manoeuvring Performance According to the Static Heel Angle of a Twin-Screw Ship

Chang Seop Kwon, Kunhang Yun, Dong Jin Yeo

The manoeuvrability of a ship with an unwanted heel angle due to a maritime accident is changed from the original characteristics. The purpose of this study is ...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.407

An Experimental Study on the Manoeuvrability of KCS with Different Scale Ratios by Free Running Model Test

Kunhang Yun, Hujae Choi, Dong Jin Kim

There have been many experimental studies on the manoeuvrability of KRISO Container Ship (KCS). However, the scale ratio of the model ship and the test procedur...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2021.58.6.415