Hydraulic Torque Characteristics of Guide Vane at Pump Mode in a Pump Turbine

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	Hydraulic Torque Characteristics of Guide Vane at Pump Mode in a Pump Turbine
	Li, Qi-Fei 1,2; Li, Guang-Xian 1; Quan, Hui 1,2; Chen, Yu 1; Zhang, Zheng-Jie 1; Wang, Ren-Ben 1
刊名	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
	2018-10-01
卷号	39 期号:10 页码:2193-2199
关键词	Computational fluid dynamics Computer simulation Hydraulic motors Numerical methods Numerical models Pumped storage power plants Torque Turbulence models Vortex flow Flow charac-teristics Guide vane K-Omega turbulence model Numerical calculation Operating condition Pressure pulsation Pump-turbines Torque characteristic
ISSN号	0253231X
英文摘要	In the torque experiment of guide vane in a pump turbine at pump mode, torque coefficient is not definitely axisymmetric among all tested guide vanes. Based on experimental results and numerical method of computational fluid dynamics, numerical calculations in the pump turbine at pump mode were carried out to analyze flow characteristics of guide vane. SST k-ω turbulence model was used in the calculations. The numerical simulation results of the hydraulic torque are consistent with the experiment results in all openings. The experimental results show that the torque factor of the pump operating condition is presented the parabola law. When the opening is less than 43.0%, a large number of vortexes are generated by the flow in the distributor field. With the opening decreasing, there are more vortex and more obvious turbulent flow. The monitoring value of torque factor and statics pressure get worse uniformity while opening decreasing from 43.0%, and their periodical regularity is gradually disappearing. When opening within 51.2% to 67.6%, flow field in the pump mode is smooth. Torque pulsation amplitude and pressure pulsation amplitude all increase while opening decreasing from 43.0%, their pulsation intensity are significantly enhanced. © 2018, Science Press. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114070]
专题	新能源学院能源与动力工程学院
作者单位	1.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Gansu Fluid Machinery and Systems, Lanzhou Univ. of Tech., Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Qi-Fei,Li, Guang-Xian,Quan, Hui,et al. Hydraulic Torque Characteristics of Guide Vane at Pump Mode in a Pump Turbine[J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,2018,39(10):2193-2199.
APA	Li, Qi-Fei,Li, Guang-Xian,Quan, Hui,Chen, Yu,Zhang, Zheng-Jie,&Wang, Ren-Ben.(2018).Hydraulic Torque Characteristics of Guide Vane at Pump Mode in a Pump Turbine.Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,39(10),2193-2199.
MLA	Li, Qi-Fei,et al."Hydraulic Torque Characteristics of Guide Vane at Pump Mode in a Pump Turbine".Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics 39.10(2018):2193-2199.