中文摘要：

对公伯峡水电站旋流内消能泄洪洞进行了不同闸门开度运行的模型试验研究,并与部分原型观测结果进行了对比.闸门开度运行方式不同时,上部通气孔的通气状态与旋流洞的流态不同,泄流量和消能率等水力特性的变化规律也均有所不同,应尽量保证旋流泄洪洞的运行为淹没流态和避免闸门小开度或低水位运行.除上通气孔的风速与通风量以外,下通气孔通气量、风速、导流洞出口平均流速、泄流量和总的消能率原型与模型的观测结果均基本一致.

英文摘要：

A model experiment research on the swirling flow inner energy dissipation discharge tunnel of Gongboxia hydropower station is done at the different strobe open degree and it＇s some results are contrasted with the prototype observation of the tunnel.When the running way changes,the woke way of the upper-aeration hole,the fluent pattern of the swirling flow are different and also some hydraulic characteristics such as the discharge,wall pressure and energy dissipation ratio.The running way of the tunnel should be restricted within the drowned fluent pattern,and the running of the tunnel in the low upper-water level and at the little open degree of the strobe should be avoided.Excluding the wind speed and aeration volume of upper-blowhole,the aeration volume and the wind speed of lower-blowhole,the average flow speed of guidance tunnel stream,the discharge and the total dissipation ratio of the tunnel obtained by the prototype are identify with the values by the model experiment.