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在河口水流环境中,床面上的物体(如海底管线、水雷、桥墩、丁坝等)会对流场、底床产生重要影响。由于物体的存在造成局部流动呈强三维紊动特征,泥沙运动剧烈,从而造成局部地形强烈变化。物体周围的局部冲刷过程和机理十分复杂,涉及物体形状、水动力环境、底床泥沙类型等多种因素。对于此类问题,模型实验分析一直是主要的研
In the estuarine flow environment, objects on the bed surface (such as submarine pipelines, mines, piers, groins, etc.) will have a significant impact on the flow field and the bed. Due to the existence of objects, the local flow shows strong three-dimensional turbulent characteristics and the sediment movement is violent, resulting in a strong change of the local topography. The local scour process and mechanism around the object is very complicated, involving various factors such as the object shape, the hydrodynamic environment, the sediment type of the bed and so on. For such problems, model experimental analysis has been the main research