首页|Spectral and statistical analysis of bow wave breaking characteristics of KCS ship

Spectral and statistical analysis of bow wave breaking characteristics of KCS ship

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Bow wave breaking is a common phenomenon during ship navigation,especially at a high speed,involving complex physical mechanism such as interface mixing,air entrainment,and jet splashing.This study uses the delayed detached eddy simulation(DDES)turbulence model on the OpenFOAM platform to simulate flow around a KRISO Container Ship(KCS)model for a Froude number of 0.35,examining trim angles of 0°,0.5°,1°.This paper analyzes the statistical and power spectral density(PSD)characteristics of bow wave heights.The analysis shows root mean square(rms)and mean difference between top and bottom views indicate wave breaking.As the trim angle increases,peaks of rms in the bottom view become much higher than that in the top view,reaching 38％at 1°.PSD analysis reveals that resistance and wave height periods differ by no more than 5％,with small-scale structures like jetting and splashing causing non-dominant periodic and high-frequency wave height variations.

Bow wave breakingKRSIO Container Ship(KCS)statistical characteristics analysisspectral analysis

Xin-yi Li、Feng-jun Bao、Jian-hua Wang、De-cheng Wan、Jian Xu

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Computational Marine Hydrodynamics Lab(CMHL),School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

Ningbo Pilot Station,Ningbo Dagang Pilotage Co.,Ltd.,Ningbo 315100,China

China Shipbuilding Ninth Design and Research Institute Engineering Co.,Ltd.,Shanghai 200063,China

National Natural Science Foundation of ChinaResearch and Application Demonstration Project of Key Technologies for Safeguarding of Container vessels in Ningbo Zhoushan

52131102ZJHG-FW-2024-27

2024

10.1007/s42241-024-0054-2

水动力学研究与进展B辑
中国船舶科学研究中心

水动力学研究与进展B辑

CSTPCDEI
影响因子：0.596
ISSN：1001-6058
年,卷(期)：2024.36(4)
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