Research on the Adjustment of the Linear Shaped Pier to the Curved Forked River Inflow

In order to study the influence of the linear shaped pier on the inflow into the curved forked river,this paper uses the Tongcheng Sluice as the research model. Firstly,the most complex flow pattern is selected from different working conditions,and then based on the worst flow pattern,a linear shaped pier is set at different positions in front of the gate and the bend. The flow field parameters are respectively measured in Tongcheng Sluice’s curved model,and the angle index between the inlet velocity vector and the direction of the gate pier is established to analyze the state of the curved forked river. At the same time,the FLUENT software is used for numerical simulation verification.Tecplot software is used for post-processing analysis. Finally,the optimal rectification scheme is selected based on the physical model. The results show that the angle deflection coefficient between the gate inlet velocity vector and the gate pier direction can directly evaluate the pros and cons of the inlet flow state. A linear shaped pier is placed in front of the gate. As the linear shaped pier is closer to the gate,the flow pattern in front of the gate will be more chaotic. In addition,the vortex in the bend can be significantly improved by setting a linear shaped pier in the bend,and the linear shaped pier is arranged 20 m from the convex bank on the center line of the bend,and the flow state in front of the bend and gate are significantly improved.