海洋结构物小尺度桩柱的水动力系数研究与进展

Recent Research and Progress on Hydrodynamic Coefficients of Marine Structures with Small Scale Pile

本文主要归纳了基于Morison方程求解小尺度桩柱的水动力系数方面的研究成果。分别从单桩柱和群桩两个方面对水动力系数的研究成果,包括纯波、波流混合、横向力、直立桩柱、倾斜桩柱、复杂结构桩柱、粗糙度等进行了阐述,给出了在波流条件下水动力系数的变化规律;归纳了当前水动力系数的求解方法;介绍了在水动力系数的物模实验、数值仿真以及实验数据处理方法上的研究进展,并提出了相关研究的建议。

The paper sum up many achienements in the computation of hydrodynamic coefficient on small diameter cylinders using the Morison Equation. The achienements on the the experimental studies, numerical simulation and hydrodynamic coefficient determination method are summarized with discussion about the signle cylinder and pile group. The effect of the current, current and wave, transverse force, veritical cylinder, incline cylinder, and roughness on hydrodynamic coefficient is elaborated. what’s more, the variation law of hydrodynamic coefficient under wave current condition is given. The method of solving the current hydrodynamic coefficients is summarized. Further work on the hydrodynamic coefficient of complex marine structures and other affecting factors is needed to develop efficient approaches.