中文摘要：

文章针对重庆天白水电站溢洪道弯段左右两岸水深、流速差值大,水流对冲强烈,流态紊乱的恶劣状况,采用正超高和反超高两种优化设计方案,并使用SMS平面水流二维数学模型进行数值模拟计算,由计算结果可知,相比原方案,两种方案下的弯段流态都有所改善,对两者效果进行对比后,认为正超高方案下弯段水体分布均匀,流态优于反超高方案.

英文摘要：

The water on both sides of the spillway bending section of Chongqing Tianbai hydropower station was deep, with large flow velocity difference, strong water hedge and disorder flow. This paper adopted two optimized design schemes of extra-high and inverse extra-high, using SMS of a planar 2 d mathematical model for numerical simulation. The results showed that, compared with the original plan, flow pattern in bending section had been improved. The water distribution was uniform under extra-high scheme, and flow pattern was better than inverse extra-high scheme.