Spectral and statistical analysis of bow wave breaking characteristics of KCS ship
作者机构：Computational Marine Hydrodynamics Lab(CMHL)School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Ningbo Pilot StationNingbo Dagang Pilotage Co.Ltd.Ningbo315100China China Shipbuilding Ninth Design and Research Institute Engineering Co.Ltd.Shanghai200063China
出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)
年 卷 期：2024年第36卷第4期
页 面：593-608页
核心收录：
学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）]
基 金：Project supported by the National Natural Science Foundation of China(Grant No.52131102) supported by the Research and Application Demonstration Project of Key Technologies for Safeguarding of Container vessels in Ningbo Zhoushan Port Based on Intelligent Navigation(Grant No.ZJHG-FW-2024-27)
主 题：Bow wave breaking KRSIO Container Ship(KCS) statistical characteristics analysis spectral analysis
摘 要：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 *** 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 *** analysis shows root mean square(rms)and mean difference between top and bottom views indicate wave *** 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.
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