To clarify the relationship between the tidal force acting on a vertical cylinder in a strong tidal estuary and the tidal flow conditions and cylinder diameter,a tidal bore flume model experiment was conducted to study the tidal force acting on three types of vertical cylinders with different pre tidal water depths and tidal bore heights.The results indicate that the tidal force of strong tidal bore is the sum of the impact force on the upright cylinder and the resistance of the wa-ter flow around it at that moment,as well as the pressure difference of the water level before and after the cylinder.A di-mensionless tidal force calculation formula was obtained through data regression analysis.This formula indicates that the pre tidal water depth is also a key factor in the analysis and calculation of the tidal bore force besides considering the height of the tidal bore and the diameter of the cylinder,and there is a significant nonlinear relationship between the tidal bore force and the diameter of the cylinder.
关键词
强涌潮/圆柱直径/潮前水深/涌潮高度/涌潮作用力
Key words
strong tidal bore/cylinder diameter/pre tidal water depth/tidal bore height/tidal bore force
维普
万方数据