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가상 자유 항주를 이용한 KCS 선형의 정수 중 선회 및 변침 성능 해석Numerical Analysis on Turning and Yaw Checking Abilities of KCS in Calm Water a Based on Free-Running Simulations

Other Titles
Numerical Analysis on Turning and Yaw Checking Abilities of KCS in Calm Water a Based on Free-Running Simulations
Authors
양경규김유철김광수연성모
Issue Date
2월-2022
Publisher
대한조선학회
Keywords
Maneuvering performance(조종성능); Virtual free running(가상 자유항주); URANS; KRISO Container Ship(KCS)
Citation
대한조선학회 논문집, v.59, no.1, pp 1 - 8
Pages
8
Journal Title
대한조선학회 논문집
Volume
59
Number
1
Start Page
1
End Page
8
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9225
DOI
10.3744/SNAK.2022.59.1.1
ISSN
1225-1143
2287-7355
Abstract
To understand physical phenomena of ship maneuvering deeply, a numerical study based on computational fluid dynamics is required. A computational method that can simulate the interaction between the ship hull, propeller, and rudder will provide informative local flows during ship maneuvering tests. The analysis of local flows can be applied to improve a physical model of ship maneuvering that has been widely used in maneuvering simulations. In this study, the numerical program named as WAVIS that has been developed for ship resistance and propulsion problems is extended to simulate ship maneuvering by free-running tests. The six degree-of-freedom of ship motion is implemented based on Euler angles and the overset technique is applied to treat the moving grid of ship hull and rudder. The propulsion force due to a propeller is calculated by a panel method that is based on the lifting-surface theory. The newly extended code is applied to simulate turning and zig-zag tests of KCS and the comparison with the available experimental data has been made.
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