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基于波浪作用通量守恒和波数守恒的准则,本文提出了一个可用于计算任意水深条件下波面谱、水平速度谱及加速度谱在水流作用下变形的解析分析方法。文中还讨论了底摩擦所产生的能量损耗问题,提出了一个基于等效能概念的线性化剪应力模式。作者进行的不规则波试验表明无论是波面谱、水平速度谱与水平加速度谱或是底摩擦所产生的波能损耗,计算值与试验结果吻合都相当好,因此可在实际工程中确定波况和计算波浪力时予以应用。
Based on the conservation of wave flux and the conservation of wave number, an analytic method is proposed to calculate the deformation of wave spectrum, horizontal velocity spectrum and acceleration spectrum under the action of water flow under arbitrary water depth. The paper also discussed the energy loss caused by the bottom friction, and proposed a linearized shear stress model based on the concept of equivalent energy. Irregular wave experiments conducted by the author show that the wave energy loss caused by either the wave spectrum, the horizontal velocity spectrum and the horizontal acceleration spectrum or the bottom friction is very good. The calculated values are in good agreement with the experimental results, so the actual situation can be confirmed And to calculate the wave force to be applied.