摘要
本文在文献[1]提出的浅水垫消力池概念基础上,用三维RNGk-ε紊流模型对浅水垫消力池的水力特性进行了数值模拟,并与模型试验进行了比较,结果显示其水流特性、水面线特征、流速与压力分布与模型试验吻合良好,并揭示了浅水垫消力池与一般消力池不同的新特性;数值计算与模型实验结果均表明,与常规消力池的水流特性、水面线特征、流速与压力分布相比,浅水垫消力池可以有效降低临底流速,比常规消力池更具改善池内水力特性和消能效果方面的优势。
Numerical simulation and experimental tests were conducted to study the stilling basin with shallow - water cushion（SBSWC） proposed in[1]. The simulation by using a 3D RNG k - ε turbulence model shows a good agreement with the test data in flow pattern,free surface elevation and velocity and pressure distributions. Results of calculation and experiment reveal the difference of SBSWC from a conventional design. With the velocity near the bottom effectively reduced,the hydraulic performances and energy dissipation efficiency of SBSWC are significantly improved over the conventional design.
出处
《水力发电学报》
EI
CSCD
北大核心
2010年第2期36-41,126,共7页
Journal of Hydroelectric Engineering
关键词
水力学
浅水垫消力池
RNGk-ε紊流模型
数值模拟
消能
hydraulics
energy dissipation
stilling basin with shallow-water cushion
RNG k-ε turbulence model
