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本文基于Morison方程和线性波理论分析了波浪与水流共存条件下作用于垂直桩柱上的波流力,提出了在规则波条件下适用于波流共存时的KC数(N‘_(KC))的定义,试验证明速度力系数C_d及惯性力系数C_m与N’_(KC)具有良好的相关性。这一相关关系可以应用于不规则波条件下波流力在时域内的计算,其结果与试验值吻合良好,文中还提出了一个简化的波流力极大值概率分布的分析方法,其结果与试验值相符也很好,可供工程实际使用。
Based on the Morison equation and the linear wave theory, the wave force acting on the vertical piles under the coexistence of wave and water flow is analyzed. The KC number (N ’_ (KC)) applied to wave piles under the condition of regular wave is proposed. The experimental results show that the velocity force coefficient C_d and the inertial force coefficient C_m have a good correlation with N ’_ (KC). This correlation can be applied to the calculation of the wave power in the irregular wave condition in the time domain. The result is in good agreement with the experimental data. A simplified analytical method for the probability distribution of wave power maximum is also proposed. The result In line with the experimental value is also very good, for the actual use of the project.