Experimental Study On Hydraulic Characteristics Of Sluicing Steep Slope Basin Stage

In order to guarantee the safe operation of a hydropower station project in xinjiang,the hydropower station in the steep slope of the water stilling basin for multistage hydraulic characteristics and structural optimization of comprehensive and in-depth research.In this article,through physical model test,numerical simulation and theoretical analysis,a method that combines the multistage stilling basin drain steep slope are studied,using the method of physical model experiment to model test,the design scheme of the primary measured under different working conditions of the steep slope drainage hydraulic characteristics, flow capacity,water depth,velocity field.Physical model test measured data it is found that the original design scheme under various operating conditions of the flow capacity can not meet the design requirements,design lf part structure in the sidewall height is low,all levels of stilling basin water roll,poor efficiency lf the results.To solve above problens for the drainage slope body structure lf the corresponding optimization,and adding auxiliary facilities for energy dissipation in stilling basin at different levels-suspended grid,physical model experiment was carried out anain for potimization.Accordig to the measured data analysis after optimization of structure of drain slope flow capability can meet the design requirements;A whole wall height can meet the operation requirements;Stilling basin can improve effect of stilling basin at all levels after adding suspended grid has sifnificant effect to reduce the tailrace flow velocity.According to the optimized design scheme using Fluent software for all conditions of the steep slope drainage numerical simulation calculation, numerical simulation and the result was compared with physical model test results,and found that both coincide well.