竖式进水口消涡措施试验研究

Experimental Study of Vortex Elimination Measures at Vertical Intake

针对车马碧水库竖式进水口处出现的立轴旋涡,利用水工模型试验,研究了进口水流流速以及淹没深度对该旋涡的影响,根据研究成果提出修建专门消涡建筑物消除旋涡的方案;结果表明:通过在竖式进水口周围设置12个消涡墩以及在进水口上方设置一消涡盖板组成消涡亭的方式实现在不影响泄流能力以及不过多增加工程量的基础上有效消除竖式进水口处的立轴旋涡的目的。研究成果可为竖式进水口消涡措施的布置提供参考。

Focusing on the issue that there is a vertical vortex at the vertical intake of ChemabiReservoir Project,the paper studies the impacts of water velocity at the vertical and the submerged depth on the vortex,the paper proposes the scheme to vanish the vortex by building a vortex elimination construct. The result indicates the vortex elimination construct consisted of 12 vortex and a cover plate vanishes the vortex completely without affecting the discharge capacity and increasing much work for the project. The study result can provide a reference for the arrangement of vortex elimination measures of vertical intakes.