【摘要】 本文采用波浪缓坡方程抛物型近拟方法，研究了级变地形上波─流并存情况下的传播问题。文章首先提出了包含摩阴项在内的抛物型控制方程，然后结合波─流作用守恒方程和文献[8]的成果，给出了波能衰减率的简便形式。算例表明，本文提出的计算方法可用于大型水域实际工程设计中波浪要素的计算。更多还原

【Abstract】 In this paper the parabolic approximation method is used to study combined propngations of wave - current over a slowly varying and frictional topography. A governing equation included the friction effects is firstly given by the author. A simplified form is presented after the examination of wave - current conservation equation and the bed friction model given by Yoo and O’connor, Calculation examples revealed that the computational method presented in this paper can be used for calculation of wave elements in practical engineering design with large water area.更多还原