论文部分内容阅读
根据近岸带及河口区潮流、波浪、湍流各自物理尺度的不同，从Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程和质量传输方程出发，利用Ｒｅｙｎｏｌｄｓ分解的方法，建立了模拟波浪潮流联合输沙及海床冲淤演变的理论体系，给出了潮流作用下近岸波浪传播方程、波浪作用下潮流运动方程；并通过利用波流合成底部切应力、底层湍流脉动随机特性，得出了波流联合作用下不平衡输沙计算中泥沙起悬与沉降量的确定方法。本文模型应用于“广西合浦围垦工程潮流波浪输沙”、“黄骅港规划一期工程波流计算”等实际工程，结果证明该模型是可行的。
According to the different physical scales of tidal current, wave and turbulence in the nearshore zone and estuarine zone, based on the Navier-Stokes equation and the mass transfer equation, the Reynolds decomposition method is used to simulate the interaction between wave loading and sediment transport and the evolution of the sea floor Theoretical system, the wave propagation equation under the tidal current and the tidal current equation under the wave action are given. Based on the stochastic characteristics of bottom shear stress and underlying turbulent pulsation, the unbalanced sediment transport Determination method of suspended sediment and settlement in sediment. The model is applied to the actual projects such as tidal wave sediment transport in Hepu Reclamation Project in Guangxi and wave flow calculation in the first phase of Huanghua Port Planning. The results show that the model is feasible.