摘要
在水池试验中测得的波浪增阻包含纯水动力(即因船体周围水流变化而作用于船体的水动力)和由波浪诱导的船舶运动产生的平均惯性力。论文基于OpenFOAM,采用雷诺平均方程预报油轮KVLCC2在规则波中迎浪直航时的运动和波浪增阻。通过计算证实了波浪诱导的船舶运动产生的平均惯性力不为零,尤其是在长波条件下,它对波浪增阻的贡献不可忽略。考虑惯性效应的波浪增阻的计算结果与试验数据吻合良好。此外,计算结果证实了波幅增大后无因次波浪增阻减小,波浪增阻与波幅的平方不成正比。
Added resistance measured in towing tests includes pure hydrodynamic component due to the change of water flow around the hull and average inertial force component due to wave-induced ship motion.Based on the software OpenFOAM,this work shows a study on numerical prediction of the motion and added resistance of an oil tanker KVLCC2 in heading regular waves by using RANS method.Calculation results indicate that average inertial forces generated by wave-induced ship motions are not equal to zero,and their contribution to the added resistance cannot be ignored under long waves conditions.Calculation of the added resistance considering inertia effects are in good agreement with experimental data.In addition,influence of the wave amplitude on the added resistance is analyzed.It is confirmed that with the increase of the wave amplitude,the dimensionless added resistance decreases,so that the added resistance is not proportional to square of the wave amplitude.
作者
高庆泽
姚建喜
GAO Qingze;YAO Jianxi(Key Laboratory of High Performance Ship Technology(Wuhan University of Technology),Ministry of Education,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China)
出处
《中国造船》
EI
CSCD
北大核心
2021年第4期75-88,共14页
Shipbuilding of China
基金
国家自然科学基金(51609188,51720105011)。
作者简介
高庆泽,男,1997年生,硕士研究生。主要从事船舶耐波性方面研究;通讯作者:姚建喜,男,1985年生,博士,副教授。主要从事船舶操纵性与耐波性、计算流体动力学方面研究。
