摘要
基于计算流体力学方法,结合滑移网格技术与动网格技术,实现了带自由面的双桨双舵舰船的直航与斜拖的数值模拟试验,并根据数值模拟所得到的若干数据求取了桨的实效伴流系数、流入舵的纵向有效速度与有效冲角、操舵诱导横向力关于舵力的修正因子及其距舰船重心的无量纲距离等船、舵、桨相互干扰系数。数值模拟结果与权威水池试验结果相比对,吻合良好。
Based on Computational Fluid Dynamics method, the sliding mesh and dynamic mesh method is adopted to simulate straight line and oblique towing test of ship with twin propellers and twin rudders. And according to the simulation results, the interference coefficients, such as effective weak fieM coefficient, rudder＇s effective longitudinal velocity and effective attack angle and rudder force＇s modificatory factor for ship handling derivational transverse force and its dimensionless distance to ship＇s gravity point, are calculated. The numerical simulation results show good agreement with the corresponding tank test.
出处
《船舶工程》
北大核心
2014年第1期41-44,117,共5页
Ship Engineering
关键词
舰船
螺旋桨
舵
干扰
计算流体力学
warship
propeller
rudder
interference
computational fluid dynamics（CFD）
