有限深水域中浮体水动力系数的渐近特性

Asymptotic Characteristics of the Hydrodynamic Coefficient for a Floating Body on Water of Finite Depth

讨论了有限深水域中浮体振荡频率ω→０和ω→∞时附加质量和阻尼系数的渐近特性。分别就垂荡和横荡两种情况给出了水动力系数的近似估算公式，并对研究过程中遇到的有关流场奇异性问题进行了讨论。

Under high and low-frequency vibration of a floating body on water of finite depth,theasymptotic characteristics of the added mass and damping coefficient as ω→0 and ω→∞ arestudied.BOth heaving and swaying modes are considered.Some illustrative results of hydro-dynamic coefficients are given. The singularity of the potential flow field at the intersectingline between the body and the free surface is discussed。