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파랑 표류력을 고려한 선박의 파랑 중 선회성능 해석Numerical Analysis of Turning Performance in Waves by Considering Wave Drift Forces

Other Titles
Numerical Analysis of Turning Performance in Waves by Considering Wave Drift Forces
Authors
서민국남보우김연규
Issue Date
2018
Publisher
대한조선학회
Keywords
파랑 중 조종성능; 파랑 표류력; 선회성능; 수치 시뮬레이션; Maneuvering performance in waves; Wave drift force; Turning performance; Numerical simulation
Citation
대한조선학회 논문집, v.55, no.2, pp 103 - 115
Pages
13
Journal Title
대한조선학회 논문집
Volume
55
Number
2
Start Page
103
End Page
115
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/496
DOI
10.3744/SNAK.2018.55.2.103
ISSN
1225-1143
Abstract
This paper performs a numerical computation of ship maneuvering performance in waves. For this purpose, modular-type model (MMG (Mathematical Modeling Group) model) is adopted for maneuvering simulation and wave drift force is included in the equation of maneuvering motion. In order to compute wave drift force, two different seakeeping programs are used: AdFLOW based on Wave Green function method and SWAN based on Rankine panel method. When wave drift force is calculated using SWAN program, not only ship forward speed but also ship lateral speed are considered. By doing this, effects of lateral speed on wave drift force and maneuvering performance in waves are confirmed. The developed method is validated by comparing turning test results in regular waves with existing experimental data. Sensitivities of wave drift force on maneuvering performance are, also, checked.
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