Analysis of Flood Discharging Atomization Influence Law of Large Hydropower Station with Rain Intensity Contribution
The influence of flood discharge atomization on both sides of the slope has always been a major concern for the long-term operation safety of hydropower hub.Aiming at the problem of atomization of discharge flood in southwest hydropower station,the random spatter mathematical model was used to study the atomization influence law.The model solving method was improved.Considering complex terrain,water tongue wind,natural wind and water droplet flight process,based on GS Hydropower Station in Southwest China,the fogged rainfall under different discharge conditions was forecasted.The results show that the discharge mode,topography and natural wind play a leading role in the distri-bution pattern of fog and rain area of large hydropower station.Under different working conditions of GS hydropower sta-tion,the atomized rainfall showed a vertical climbing trend along the slopes of both sides of the river valley.The rain-storm area spread to the highest elevation of 2 236 m along the left bank and 2 188 m along the right bank,the maximum longitudinal length was 815 m,and the rainstorm center rainfall intensity reached 600-1 000 mm/h.The research results provide a reference for analysis of atomization effects at the discharge outlet of narrow river valley and large-scale hydro-power station projects.
flood discharge atomizationrandom spatteringvalley topographywind fieldrainfall intensity distribution
NETL
NSTL
万方数据
维普
