Influences of guide vanes airfoil on hydraulic turbine runner performance

doi:10.1016/j.proeng.2012.01.794

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	Influences of guide vanes airfoil on hydraulic turbine runner performance
	Li, Qi-Fei 1; Quan, Hui 1; Li, Ren-Nian 1; Jiang, Dun-Jun 2
	2012
会议日期	March 9, 2012 - March 11, 2012
会议地点	Nanjing, Jiangsu, China
关键词	Airfoils Hydraulic structures Hydraulic turbines Hydraulics Shore protection Turbomachine blades Guide vane Guide vane openings Negative curvature Numerical simulatio Performance Placement angles Runner Turbine installation
卷号	28
DOI	10.1016/j.proeng.2012.01.794
页码	703-708
英文摘要	The 4 different kinds of guide vanes airfoil turbines are used as objects, and under the same dimensions of the turbine wheel (high-pressure side diameter, low-pressure side diameter, and blade width of inlet, outlet placement angle and number of blades) and the same design, numerical simulations were performed for turbines by using software FLUENT 6.3. The experiment shows that the blade pressure surface and suction surface pressure is low when the hydraulic turbine installations were added standard positive curvature of the guide vane and modified positive curvature of guide vane .Therefore, the efficiency of energy recovery is low. However, the pressure of negative curvature guide vane and symmetric guide vane added on hydraulic turbine installations is larger than that of former ones, and it is conducive to working of runner. With the decreasing of guide vane opening, increasing of inlet angle, flow state gets significantly worse and obvious reflux and horizontal flow appeared in blade pressure surface. At the same time, the vortex was formed in Leaf Road, Leading to the loss of energy. © 2012 Published by Elsevier Ltd.
会议录	Procedia Engineering
会议录出版者	Elsevier Ltd
语种	英语
ISSN号	18777058
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116079]
专题	新能源学院兰州理工大学能源与动力工程学院
作者单位	1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, 730050, China; 2.SANY Automotive Lifting Machinery Co., Ltd., Changsha, China
推荐引用方式 GB/T 7714	Li, Qi-Fei,Quan, Hui,Li, Ren-Nian,et al. Influences of guide vanes airfoil on hydraulic turbine runner performance[C]. 见:. Nanjing, Jiangsu, China. March 9, 2012 - March 11, 2012.