论文部分内容阅读
为研究在波浪、潮流及河川径流等多种动力因素共同作用下河口海岸地区的水动力环境,建立了一个河口海岸地区的综合水动力学模型。该综合模型应用了基于改进型Boussinesq方程的近岸模型、基于Saint-Venant方程的河道模型,并考虑了波浪破碎及底部摩擦的影响,将近岸水动力模型和河道水动力学模型进行耦合求解。将该模型用于研究长江口及口内感潮河道径流与潮流的相互作用,涨潮及落潮过程中水流运动。计算所得到的各测站水位、流速及流向与观测资料吻合良好。
In order to study the hydrodynamic environment in estuarine and coastal areas under the combined action of wave, tidal current and river runoff, a comprehensive hydrodynamic model for estuarine and coastal areas was established. This integrated model uses the nearshore model based on the improved Boussinesq equation and the river model based on the Saint-Venant equation. Coupling the nearshore hydrodynamic model and the hydrodynamic model of the river with the influence of wave breaking and bottom friction, . The model was used to study the interaction between runoff and tidal currents in the Yangtze River estuary and tidal channel in the mouth, and the water flow during high tide and ebb tide. The calculated water level, velocity and direction of each station are in good agreement with the observed data.