水力自动浮移式闸门水流特性研究

Research on Flow Characteristics of Hydraulic Automatic Floating Gate

通过水力自动浮移式闸门的模型试验,测量闸门在不同来水流量下的闸门开度、闸门上下游水位,绘制来水流量和闸门开度的关系曲线以及水面线,分析过闸水流流态,研究水力自动浮移式闸门的水流特性。经试验分析得出:闸门开度和来水流量呈正相关关系;闸门在较小流量下运行时,上游流态较平稳,下游流态较紊乱;随着流量的增大,闸门上下游水流均出现局部水位雍高现象。

Through the model test of the hydraulic automatic floating gate,the gate opening and the water level at the upstream and downstream of the gate are measured under different incoming water flows,draw the relationship curve between incoming water flow and gate opening and the water surface profile,analyze the flow pattern of the water passing the gate,study the flow characteristics of hydraulic automatic floating gate.The results show that the gate opening is positively correlated with the incoming water flow;When the gate is operated under a small flow rate,the upstream flow state is more state is more stable and the downstream flow state is more chaotic.With the increase of the flow,the water flow on the upstream and downstream of the gate has a local water level high phenomenon.