基于CFD的泵站开机组合对航道通航能力的影响研究OA

Based on CFD technology,this study simulates and analyzes the impact of different pump operation combinations on navigation conditions in a lock-type pumping station with navigation functionality.Numerical simulation results show that the total hydraulic loss of the computational domain tends to stabilize when the number of hexahedral grids exceeds 1.95 million.Unit operation combinations mainly affect the flow velocity distribution on the left bank of the navigation channel(near the long dividing pier),with particularly significant changes in lateral velocity.As the number of operating units increases,the area in the channel where lateral velocity exceeds 0.3 m/s gradually expands.Under full-unit operation condition,the area in the navigation channel where lateral velocity exceeds 0.3 m/s is approximately 677.98 m2.The results can provide a theoretical basis for the optimal design of navigable lock-type pumping stations and navigation safety of ships.