消力池内双层悬栅对消能效果影响试验研究

Experiment on impact of double suspended grid on energy dissipation effect in stilling pool

针对在消力池内布置双层悬栅对消能效果影响鲜有研究,通过在消力池内未布置悬栅、布置单层悬栅和布置双层悬栅进行模型试验,对比分析布置悬栅前后消力池内流态、最大水深以及消能率。结果表明:在设计流量Q为15 L/s时,布置双层悬栅后,消力池内流态更加稳定,最大水深下降更加明显,但改变悬栅布置型式和栅条数,消能率变化不大。

Aimed at that research on the impact of double suspended grid on energy dissipation effects in stilling pool is few,through model test of not arranging suspended grid,arranging single suspended grid and double suspended grid,the paper comparatively analyzed the flow pattern,maximum water depth and energy dissipation rate in stilling pool before and after arranging suspended grid. The result showed that when the design flow rate Q is 15 L / s,the flow pattern in stilling pool is more stable and the maximum water depth obviously declines after arranging double suspended grid. When changing the type and number of suspended grids,the energy dissipation rate changes little.