摘要
本文对在波浪中以定常速度航行的物体建立了拟线性理论(即自由面条件为线性,物面条件在瞬时湿面上满足),在此基础上采用基本源法,利用高阶边界元划分网格,计算了有定常航速物体的附加质量和阻尼系数,从与实验值及其它计算方法的计算值的比较可看出,本文提供的计算方法是成功的。
A robust and versatile higher- order boundary element method coupled with finite element technique is developed to investigate the three dimensional hydrodynamic forces and moments arting on an oscillating arbitrary shaped body with a constant forward speed, in which the Rankine source is adopted and nonlinear coupling effects between the steady and oscillating velocity potential are consided.To show the validity of the present method, the added mass and damping coefficients for an oscillating half submerged ellipsoid with constant forward speed were calculated.Compared with the exisiting experimental and numerical results, the present results exhibit sutisfied agreement.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1995年第2期181-196,共16页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金
水动力学基金
关键词
基本源
奇异积分
船舶流体力学
定常流
Rankine source, higher- order boundary element, quasi- linear theory, sigular intergration.
