浮体间距对多浮体系统水动力系数的影响

Influence of the distance between floating bodies on hydrodynamic coefficients of floating multi-body system

根据三维线性势流理论,采用格林函数法,对多浮体系统的水动力系数进行了数值分析。数值算例中给出了在固定波频下水动力系数与浮体间相对位置关系曲线。水动力系数的变化幅度随着浮体间距离增大而变小。随着浮体间距的变化,水动力系数极值的出现具有明显的规律,相邻的极大值(或极小值)的间距为半个波长或一个波长。

Hydrodynamic coefficients of the floating multibody system are calculated by the Green′s Function technique based on the threedimensional linear potential flow theory. Curves of hydrodynamic coefficients with the distance between floating bodies are given. The change ranges of these hydrodynamic coefficients decrease as the distance between floating bodies increases. The extreme values of these coefficients appear regularly. The distance of extreme maximum (or minimum) coefficients is half wavelength or one wavelength. 