摘要
曲线型阶梯溢流坝坝面形成掺气水流，是阶梯溢流坝具有较高消能率的重要原因之一，故掺气初生点位置的确定，对阶梯尺寸的选择有重要的影响。根据在大型钢架玻璃水槽中，对４种不同阶梯尺寸的曲线型阶梯溢流坝系统试验结果，分析了坝面掺气的机理，给出了确定坝面掺气初生点位置的计算公式及曲线。
Air entrainment for the flow on stepped curved spillway is one of the important sources of the stepped spillway possessing high rate of energy dissipation.The location of aeration inception affects the choice of step sizes.Based on systematic model tests with four various step sizes of stepped spillway in a large flume,the mechanism of flow air entrainment is analyzed.A figure and a formula for the estimation of location of aeration inception are proposed.
出处
《长江科学院院报》
CSCD
北大核心
1996年第2期7-10,共4页
Journal of Changjiang River Scientific Research Institute
关键词
溢流坝
阶梯溢流坝
掺气
位置
掺气初生
dam
aeration
position
stepped spillway
aeration inception
