大连海事大学学报 >
2016 , Vol. 42 >Issue 3: 31 - 36
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2016.03.006
基于当前海浪谱的甲板上浪数值模拟
收稿日期: 2016-01-06
修回日期: 2016-03-28
网络出版日期: 2016-04-15
Numerical simulation of green water based on measured spectrum of ocean wave
Received date: 2016-01-06
Revised date: 2016-03-28
Online published: 2016-04-15
基于CFD方法建立三维黏性流数值波浪水池，采用边界条件造波法生成基于WaMoSⅡ实测的海浪环境，采用VOF方法捕捉自由面，通过求解刚体运动学方程模拟船舶的纵摇、垂荡和横摇三自由度耦合运动.在此基础上，实现了船舶在高海况下以不同浪向角航行时的甲板上浪数值模拟.通过数值计算，预报了DTMB5512船模不同浪向角下的甲板上浪频率，这与势流理论方法计算结果相符，验证了本文方法的可信度.
关键词： 甲板上浪; 数值水池; 纵摇-垂荡-横摇耦合运动; 计算流体力学（CFD）
石博文 , 刘正江 , 吴明 . 基于当前海浪谱的甲板上浪数值模拟[J]. 大连海事大学学报, 2016 , 42(3) : 31 -36 . DOI: 10.16411/j.cnki.issn1006-7736.2016.03.006
A 3D viscous numerical wave tank was established based on computational fluid dynamics (CFD)method, and the boundary conditions of wave method were used to generate wave environment based on measured spectrum from WaMoSⅡ. The free surface was captured by the volume of fluid (VOF) method. The pitch, heaving and rolling coupled motions were simulated by solving the kinematics equations for rigid body. On this basis, the numerical simulation of green water for ship sailing in huge waves with different encounter angles was achieved. The frequency of green water for DTMB5512 ship model in irregular waves under different encounter angles was predicted, which is consistent with results of theoretical calculation, and that demonstrates the reliability of the proposed method.
[1]PHAM X P,VARYANI K S.Evaluation of green water loads on high-speed containership using CFD[J].Ocean Engineering, 2005,32(S5-6):571–585.
[2]SAMES P C.Prediction of green water loads for a roro passenger ferry[C]//Proceedings of OMAE 21st International Conference on Offshore Mechanics and Artic Engineering.Oslo, Norway:[s.n.],2002.
[3]FEKKEN G,VELDMAN A E P,BUCHNER B.Simulation of green water loading using the Navier–Stokes equations[C]//In: Seventh International Conference on Numerical Ship Hydrodynamics.[S.l.]:Nantes France,1999.
[4]NIELSEN K B,STEFAN M.Numerical prediction of green water incidents[J].Ocean Engineering,2004,31(3-4):363-399.
[5]梁修锋.甲板上浪的数值模拟与试验研究[D].上海:上海交通大学,2010.
LIANG Xiu-feng.Numerical simulation and experimental study of green water on deck[D].Shanghai:Shanghai Jiaotong University,2010.(in Chinese)
[6]梁修锋,杨建民,李俊,等.自由运动船体迎浪状态下上浪问题的数值模拟[J].上海交通大学学报,2010,44(6):763–767.
LIANG Xiu-feng,YANG Jian-min,LI Jun,et al.Numerical study of green water on a freely moving ship in head wave[J].Journal of Shanghai Jiaotong University,2010,44(6):763–767.(in Chinese)
[7]朱仁传,缪国平,林兆伟,等.运动船体甲板上浪的三维数值模拟[J].水动力学研究与进展(A辑),2008,23(1):7–14.
ZHU Ren-chuan,MIAO Guo-ping,LIN Zhao-wei,et al.3-D numerical simulation of green water occurrence on oscillating ship[J].Journal of Hydrodinamics(Ser.A):2008,23(1):7–14.(in Chinese)
[8]林兆伟.甲板上浪的数值模拟研究[D].上海:上海交通大学, 2007.
LIN Zhao-wei.Numerical simulation of green water occurrence[D].Shanghai:Shanghai Jiaotong University,2007.(in Chinese)
[9]YAKHOT V,ORSZAG S A,THANGAM S,et al. Development of turbulence models for shear flows by a double expansion technique[J].Physics of Fluids A, 1992,4(7):1510–1520.
[10]石博文,刘正江,吴明.船模不规则波中顶浪运动数值模拟研究[J].船舶力学,2014,18(8):906–915.
SHI Bo-wen,LIU Zheng-jiang,WU Ming.Numerical simulation of ship motions in irregular head waves[J].Journal of Ship Mechanics,2014,18(8):906-915.(in Chinese)
/
| 〈 |
|
〉 |