旋流环形堰竖井泄洪洞是一种新型的环境友好的内消能工,跟传统环形堰竖井泄洪洞相比,泄洪洞的流态和消能防蚀机理明显不同。作为一种新型布置形式,其复杂的水流特性并不是十分清楚。依托于广东清远抽水蓄能电站下水库泄洪洞工程,基于RNG k-ε双方程湍流数学模型,并结合VOF(Volume Of Fluid)方法,对下库旋流环形堰竖井泄洪洞进水口、竖井旋流泄洪洞、出口的复杂水流进行了三维数值模拟,并对部分水力参数的特性进行了解析计算,获得了流态、压力、流速、空化数等水力要素的变化规律。模拟结果表明,数值计算结果与物理模型试验成果吻合较好。并通过数值模拟验证了该新型内消能工的泄流能力和高消能效率。
【英文摘要】
The morning glory shaft spillway with swirling flow is a new kind of environmentally friendly inner energy dissipation.Compared with the traditional morning glory shaft spillway,morning glory shaft spillway with swirling flow has obviously different flow pattern,corrosion mechanism,and energy dissipation.As a new type of morning glory shaft spillway,its complex flow characteristics are not illustrated clearly.In this paper,the shaft spillway of Qingyuan pumped storage power station was selected as the study...