旋流式竖井溢洪道竖井的水流特性研究

本文在对旋流式竖井溢洪道的实验研究基础上着重分析了该消能工的消能机理，讨论了水流旋流数和水流的涡粘滞系与消能率的关系，并建议了简易可行的数值计算方法。在研究中也发现了竖井边壁上的剪应力过大这一在具体应用中需要注意的问题。

The Hydraulic Characteristics of Shaft Tunnel in Vortex Flow Intake Shaft Spillway

With the base of experiment of shaft spillway model with vortex flow intake, this paper has mainly discussed the energy dissipation mechanism and its relations with flow swirl number and eddy viscosity. It has also given an simple numerical method to simulate the hydraulic characteristics. In the study, it has found that the shear stress is much bigger than that in common case which should be pay attention in practice application.