Abstract:
Based on the mechanism of local scour around the bridge pier, a lot of experiments were carried out to analyze the influence of the ring-wing bridge pier′s baffle shape on vertical hydraulic characteristics around the bridge pier. In this paper, 3 baffle shape types are applied in the experiment study. The research results show that the vertical velocity along the center line of the bridge pier′s upstream face has inflection point at the baffle. In 3 baffle shapes, the A1 shape has the best effect with the vertical velocity, the vertical turbulence intensity near the bottom decreases mostly, the vertical turbulence intensity near the surface decreases mostly, and the width of turbulence influencing is the langest. Through the numerical simulation, it is found that the results obtained by the CFD software agree well with the above experiment results.