南水北调与水利科技Issue(5)：910-914,5.DOI:10.13476/j.cnki.nsbdqk.2015.05.019
旋流环形堰竖井泄洪洞三维流场数值模拟
Three-dimensional numerical simulation of morning glory shaft spillway with swirling flow
摘要
Abstract
The morning glory shaft spillway with swirling flow is a new kind of environmentally friendly inner energy dissipa-tion.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 object.Based on the RNG k-εtwo-equation model for turbulent flow and VOF method,three-dimensional turbulent flow in the inlet and outlet of morning glory shaft spillway with swirling flow was simulated.Analytical calculations were performed to characterize some hydraulic parameters.The variation law of flow pattern,pressure,velocity,and cavitation number was obtained.The calculated results were in good agreement with the observed data.The discharge capacity and high ef-ficiency of energy dissipation were verified by the numerical simulation.关键词
旋流/内消能工/环形堰竖井泄洪洞/潜水起旋墩/数值模拟Key words
swirling flow/inner energy dissipation/morning glory shaft spillway/submersible blocks of spiral flow generator/nu-merical simulation分类
水利科学引用本文复制引用
施春蓉,郭新蕾,杨开林,赵林明,夏庆福..旋流环形堰竖井泄洪洞三维流场数值模拟[J].南水北调与水利科技,2015,(5):910-914,5.基金项目
国家重点基础研究发展规划“973”项目(2013CB036405) （2013CB036405）
中国水利水电科学研究院专项基金(水集1313) （水集1313）
