四川大学学报：工程科学版2012，Vol.44Issue(3)：1-6,6.
X型与Y型宽尾墩流道内水流特性研究
Hydraulics of Flow in Gate Chamber with X-shaped and Y-shaped Flaring Gate Piers
摘要
Abstract
The distributions of hydraulic parameters in the gate chamber change due to flaring gate piers （FGPs）. The variations in water level and velocity were analyzed quantitatively using RNG κ - ε turbulent model. The extent of water level rising on side walls with X-shaped FGP increased from zero to O. 2 during the first 75% of gate chamber, and it grown rapidly during the last 25%. The extent of water level rising with Y-shaped FGP was slightly higher than that with X-shaped and the difference rised during the last 25% of gate chamber. The FGP decreased the velocity gradient in the middle part of gate chamber and the Y-shaped FGP impacted the gradient stronger than X-shaped. FGPs made changes for both the direction and magnitude of velocity in the outlet. The distribution of velocity assumed extremely non-uniform, especially the significant change of direction and the great increase in the horizontal velocity （ compared to ordinary pier）. The extent of water level rising is a reference for the arrangement of hinge supports, and the quantitative analy- sis on the velocity is helpful for understanding the longitudinal and vertical developments of flow.关键词
X型宽尾墩/Y型宽尾墩/水面壅高/速度Key words
X-shaped flaring gate pier/Y-shaped flaring gate pier/water level rising/velocity分类
建筑与水利引用本文复制引用
王波,伍平,陈云良..X型与Y型宽尾墩流道内水流特性研究[J].四川大学学报：工程科学版,2012,44(3):1-6,6.基金项目
国家自然科学基金资助项目 （）
教育部博士点基金资助项目 （）
