In this research, the flow energy dissipation rate was measured in the vertical shaft of the vortex drop shaft experimentally. Also, the impacts of the inflow Froude number and the inlet structure bottom slope on the flow energy dissipation rate in the vertical shaft were investigated. The experiments are designed using the experimental design by full factorial method. By changing the parameters, the flow energy dissipation rate varied from 26.71 to 51.85%. The experimental data demonstrated that increasing the inflow Froude number and the inlet bottom slope will result in the reduction of the energy dissipation rate in the vertical shaft. According to the experiments, to create a smooth, supercritical flow in the inlet channel and the inlet structure, the slope bottom is recommended to be at least 0.4. Furthermore, according to the experimental data, a nonlinear equation was proposed for determining the energy dissipation rate in the vertical shaft.

在本研究中，通过实验测量了涡滴轴垂直轴的流动能量耗散率。此外，还研究了流入弗劳德数和入口结构底部坡度对竖井中流动能量耗散率的影响。实验设计采用全因子方法的实验设计。通过改变参数，流动能量耗散率从26.71%变化到51.85%。实验数据表明，增加流入弗劳德数和入口底坡将导致竖井能量耗散率降低。根据实验，为了在入口通道和入口结构中产生平滑的超临界流动，建议坡底至少为 0.4。此外，