摘要
基于N-S(Navier-Stokes)方程,进行了航行船舶辐射问题的数值模拟,包括强制垂荡和强制纵摇的模拟,计算了船舶垂荡和纵摇的附加质量和阻尼。数值模拟中,控制方程—RANS(Reynolds Averaged Navier-Stokes)方程和连续性方程使用有限体积法离散,非线性自由面采用VOF方法处理。文中给出了以不同航速前进的船舶强制垂荡和纵摇的力与力矩,以及船舶垂荡和纵摇的附加质量系数和阻尼系数,并与DUT(Delft University of Technology)的试验数据进行了比较,二者吻合良好。
Numerical simulations of radiation problem for a ship moving with forward speed is carried out in this paper, which include simulations of forced heave and forced pitch oscillations. The hydrodynamic mass and damping for heave and pitch motion of the ship model are computed then.The governing equations, Reynolds Averaged Navier-Stokes （RANS） and continuity equations are discretized by finite volume method （FVM）. Volume of fluid （VOF） method is adopted to deal with the nonlinear free surface. The forces and moment for the model advancing forward with forced heave and forced pitch oscillation, and the hydrodynamic mass and damping coefficients for heave and pitch motion of the model are given. The results of numerical simulation are compared with the experimental data from Delft University of Technology, and show good agreement with them.
出处
《船舶力学》
EI
北大核心
2008年第4期560-567,共8页
Journal of Ship Mechanics
作者简介
吴乘胜（1976-），男，中国船舶科学研究中心工程师，博士生。
