摘要
跌坎型底流消能工是在常规底流消能工基础上发展起来的一种新型消能工,相对于常规底流消能工能有效降低消力池的临底水力学指标。采用RNG k-ε双方程紊流模型进行数值模拟,主要就泄槽反弧段和尾坎高度对跌坎型底流消能工水力特性影响进行了分析,并将模拟结果与模型试验观测值进行对比,二者基本吻合,表明数值模拟方法有效可行,为跌坎型底流消能工的设计提供参考。
The energy dissipater with step-down floor is a new type of the conventional energy dissipater developed on the basis of the conventional energy dissipaters of hydraulic jump,the hydraulic index in the stilling basin of can be reduced effectively.The RNG k-ε double equation turbulent model is adopted in the paper to process the numerical simulation and to analyze the influence of anti-arc section and end sill height on hydraulic characteristics of energy dissipater with step-down floor,then the numerical simulation results are compared with the hydraulic model tests,the comparison indicates that the numerical simulation method is effective and feasible.It is a valuable source of reference to the step-down hydraulic jump dissipater design.
作者
徐庶伟
王海军
XU Shu-wei;WANG Hai-jun(Faculty of Electric Power Engineering,Kunming University of Science and Technology,Kuming 650500,China)
出处
《南水北调与水利科技》
CSCD
北大核心
2015年第S01期84-88,92,共6页
South-to-North Water Transfers and Water Science & Technology
基金
国家自然科学基金(51169008)。
关键词
底流消能
跌坎
模型试验
数值模拟
反弧段
尾坎
energy dissipater by hydraulic jump
step-down floor
model test
numerical simulation
anti arc
end sill
