【摘要】 本文采用广义Boussinesq理论模型,对一个由水底垂直向上伸出水面的薄柱体,在有限定度的浅水池中以跨临界速度运动时生成的浅水波进行了数值计算。计算得出的浅水波,既包括由船首向上游几乎周期性地生成的超前传播的二维孤立波,同时也给出了船体附近及后方具有弱非线性、弱色散性的复杂的三维波。这个理论方法综合地模拟出当系统处于共振状态时实验观测到的新的浅水波现象的各种特征。更多还原

【Abstract】 The generalized Boussinesq model is adopted to calculate the three-dimensional shallow water waves generated by a thin strut advancing near critical speed in a shallow water channel of finite width. Numerical calculation has indicated that a series of upstream-propagating two-di-mentional solitons are radiated periodically ahead of the strut and a complex weakly-dispersive three-dimensional wave pattern is formed around and behind the strut. The theory comprehensively simulates the characteristics of the new wave phenomenon, which have been observed in towing tank experiments while the system is in the resonance state.更多还原