摘要
该文采用时域内满足自由水面条件的格林函数方法对无限和有限水深中波浪与任意形状三维物体相互作用所产生的绕射和辐射问题进行了理论研究和数值计算。建立了不包含自由水面积分的积分方程,消除了自由项系数。文中计算了各种形状三维物体在无限水深和有限水深情况下所受到的绕射和辐射波浪力,并与解析解以及频域理论进行了对比,结果符合良好,验证了本文所提理论的正确性。
A three-dimensional time-domain approach is used to study the wave loads and body motion. In this approach, the exact body boundary condition is satisfied on the wetted body surface while the free-surface boundary conditions are linearized. An integral equation with a transient free-surface Green function is derived, in which the integration on the free surface and the free term coefficient are removed. Numerical results of diffraction and radiation for the hemi-sphere, sphere, cylinder, box and taper are presented. The agreement between the present computation and the results from the frequency domain analysis is good.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2006年第2期161-170,共10页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金(50025924)
长江学者和创新团队发展计划资助(IRT0420)
关键词
时域
有限水深
格林函数
波浪力
time-domain
finite water depth
Green functions
wave force
作者简介
滕斌（1958～）,男,山东省日照市人,教授,博导.
