闸站枢纽泵站前池流态及其改善数值模拟研究OA

This paper analyzed the causes of sediment deposition in the front pool of Shaji Sluice Station,and tried to rebuild the new cleaning machine bridge in the downstream.The bridge piers were used to improve the flow pattern of the front pool and reduce sediment deposition.The three-dimensional modeling software UG NX was used to establish a three-dimensional model of the river flow field,and ICEM CFD was used for computational domain mesh division.ANSYS CFX was used for numerical calculation.The calculation results indicate that under the current pumping conditions,there is a large-scale low-speed zone on the inner side of the diversion wall,resulting in large-scale sediment deposition.Extend the diversion walls on both sides downstream of the pump station to 60 meters,build a new cleaning machine bridge at the head of the diversion wall,and use bridge piers for diversion.The low-speed sedimentation area on the inner side of the diversion wall is greatly reduced,and the inflow flow pattern of the pump station is greatly improved.