基于RANS的短峰波中船舶耐波性预报  

Prediction of Ship Seakeeping Performance in Short-crested Sea Waves with RANS Method

作　　者：焦甲龙 黄松兴 陈超核[1] JIAO Jialong;HUANG Songxing;CHEN Chaohe(School of Civil Engineering and Transportation,South China University of Technology Guangzhou 510641,China)

机构地区：[1]华南理工大学土木与交通学院,广州510641

出　　处：《中国造船》2020年第S02期152-157,共6页Shipbuilding of China

基　　金：国家自然科学基金(51909096);广东省自然科学基金(2020A1515011181)。

摘　　要：三维海浪的准确模拟是研究实际海浪中船舶水动力性能的必需条件.论文应用基于CFD的RANS方法针对短峰不规则波进行数值模拟仿真与分析.通过STAR-CCM+软件建立方形数值水池,借助Java宏命令将短峰波目标方向谱分解成不同频率、不同方向、不同波幅且相位随机的规则子波;建立基于VOF的叠加波模型并运行宏命令,以完成规则子波参数的分配.最后,对典型工况短峰波下的船舶运动响应进行了模拟仿真与分析.Accurate simulation of 3D sea waves is of great importance in the evaluation of hydrodynamic performance of ships.This paper focuses on the numerical simulation of short-crested irregular waves with CFD-based RANS method.A cubic numerical wave tank was established by STAR-CCM+software.With the help of Java macro command,the target directional spectrum was decomposed into regular component waves with different frequencies,directions,amplitudes and random phases.Parameters of regular component waves were allocated based on VOF wave superposition model and the Java code.Examples of ship motions induced by typical short-crested waves are simulated and analyzed.

关 键 词：三维海浪 短峰波 方向谱 VOF波模型 耐波性 

分 类 号：U661.1[交通运输工程—船舶及航道工程]