Study of Hydraulic Characteristics of the Qinglongqiao Pump Station Inflow under the Influence of Operational Parameters
In order to investigate the hydraulic characteristics of the single-sided inflow at the Qinglongqiao Pump Station considering operational parameters,this study employed the Gambit-CFD numerical calculation method to analyze hydraulic parameters under different submergence depths and inflow rates.The research indicates that,despite varying submergence depths,the flow velocity within the pump station remains consistent,but the velocity fluctuation becomes more significant.Moreover,as the submergence depth increases,the flow velocity values also increase.Submergence depth does not alter the flow line gradient in the inflow channel but primarily affects vortices on the throat side.With changes in submergence depth,the vortex intensity within the pump station's inflow channel is most affected,but the impact diminishes after a submergence depth of 1.8 meters.Under different inflow rates,the distribution of flow lines in the inflow channel remains concentrated in the same area,and overall vortex intensity shows a spiral-like increasing trend.Higher inflow rates result in larger vortex intensity within the inflow channel,and this increase is relatively stable among various flow rate scenarios.The findings of this study can provide valuable insights for the analysis of water flow characteristics at inflow pump stations and their operational design.
NETL
NSTL
万方数据
维普
