水电与新能源
水電與新能源
수전여신능원
Hydropower And Nwe Energy
2015年
9期
20-23
,共4页
张力%赖克华%伍学殊%李梓玮
張力%賴剋華%伍學殊%李梓瑋
장력%뢰극화%오학수%리재위
持续性水翅%不良漩涡%物理试验%椭圆形中墩%优化方案
持續性水翅%不良漩渦%物理試驗%橢圓形中墩%優化方案
지속성수시%불량선와%물리시험%타원형중돈%우화방안
persistent water-wing%adverse swirls%physical model experiment%oval-shaped middle pier%scheme opti-mization
针对导流底孔泄洪时底孔进水口伴随发生的不良漩涡和底孔出水口明渠内形成的持续性不良水翅，通过物理模型试验的方式对其成因做详细模拟分析，提出优化方案，对其底孔结构进行改进：在底孔出水口增设椭圆形中墩和边墩，能有效地消除不良持续性水翅和间歇性漩涡，又能满足导流设计要求。
針對導流底孔洩洪時底孔進水口伴隨髮生的不良漩渦和底孔齣水口明渠內形成的持續性不良水翅，通過物理模型試驗的方式對其成因做詳細模擬分析，提齣優化方案，對其底孔結構進行改進：在底孔齣水口增設橢圓形中墩和邊墩，能有效地消除不良持續性水翅和間歇性漩渦，又能滿足導流設計要求。
침대도류저공설홍시저공진수구반수발생적불량선와화저공출수구명거내형성적지속성불량수시，통과물리모형시험적방식대기성인주상세모의분석，제출우화방안，대기저공결구진행개진：재저공출수구증설타원형중돈화변돈，능유효지소제불량지속성수시화간헐성선와，우능만족도류설계요구。
During the discharging of diversion bottom outlets in a hydropower station, adverse swirls in front of the inlets and persistent water-wings in the open channels after the outlets are observed.Causes of these swirls and water-wings are analyzed with physical model experiments.Structural optimization schemes are then proposed.Oval-shaped middle piers and side piers are recommended to be built after the bottom outlets, which can effectively eliminate the adverse persistent water-wings and intermittent swirls with little influence on the diversion capacity.
