【摘要】 水翅是陡坡台阶式溢洪道在流量较小时出现的一种水流现象。模型试验表明:当斜坡角度为40°～60°时,水翅存在于几乎整个跌落水流范围内,甚至持续到过渡水流;随着溢洪道底坡的增大,水翅存在的流量变化范围增大、高度增加;随着台阶尺寸的减小,水翅高度降低,所存在的流量变化范围缩小。更多还原

【Abstract】 The water-wing always appears when discharge on steep slope stepped spillways is smaller. Model experimental studies indicating that when the base slope of spillways changes within the range of 40 degrees to 60 degrees,the water-wing nearly exists in the whole nappe flow,even continuing to the transition flow. The range of discharge of the water-wing decreases and the height of the water-wing increases with augmentation of the bottom slope of stepped spillways; the range of discharge and height of the water-wing decrease with decrease in step size.更多还原