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Numerical Analysis of Hydrodynamic Loads on Passing and Moored Ships in Shallow Water

Authors
Park, Ji-YongNam, Bo WooKim, Yonghwan
Issue Date
3월-2021
Publisher
MDPI
Keywords
passing ship; hydrodynamic load; time-domain simulation; finite element method
Citation
PROCESSES, v.9, no.3
Journal Title
PROCESSES
Volume
9
Number
3
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/161
DOI
10.3390/pr9030558
ISSN
2227-9717
2227-9717
Abstract
In this study, hydrodynamic interactions between passing and moored ships were studied by applying a time-domain numerical simulation method. The boundary value problem for a fluid domain was formulated based on a potential flow theory. A numerical method was developed based on a finite element method with an efficient re-mesh algorithm. Regarding the free-surface boundary conditions, both double-body and free-surface models were considered for examining the free-surface effect on the hydrodynamic forces due to the passing ship. First, numerical results were validated by comparison with the model test results of Kriebel et al. (2005), where generic Series 60 hulls were considered as the target model for the passing and moored ships. In addition, hydrodynamic pressure fields and force time-series were investigated to understand the passing ship problem. Second, a series of numerical simulations were performed to study the effects of the passing ship speed, separation distance, water depth, and relative vessel size, which were used to compare the peak values of hydrodynamic forces. The applicability and limitations of the double-body and free-surface models are discussed for predicting passing ship loads.
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친환경해양개발연구본부
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