排灌机械工程学报
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排灌机械工程学报  2019, Vol. 37 Issue (3): 192-198    DOI: 10.3969/j.issn.1674-8530.17.0074
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导叶时序位置对离心泵叶片载荷影响的数值模拟
彭小娜,朱相源,李国君,江伟
西安交通大学热流科学与工程教育部重点实验室, 陕西 西安 710049; 西北农林科技大学水利与建筑工程学院, 陕西 杨凌 712100
Numerical prediction of clock effect of diffuser in volute on blade loading in centrifugal pump
PENG Xiaona,ZHU Xiangyuan,LI Guojun,JIANG Wei
Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi′an Jiaotong University, Xi′an, Shaanxi 710049, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
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摘要 采用结构化网格及SST湍流模型,对不同导叶时序位置下离心泵内部流场进行三维非定常数值模拟,并对模拟结果进行试验验证,研究时序效应对叶轮叶片和导叶叶片载荷的影响.结果表明:当隔舌大约处在2个导叶中间(cl0,cl5位置)时,蜗壳不对称作用对叶轮内部流场影响降低,叶轮叶片压力面载荷增大,叶轮做功能力较好; 当叶片逐渐靠近蜗壳隔舌时,蜗壳不对称作用对叶轮内部流场影响增大,叶片出口吸力面大于压力面载荷的位置逐渐向叶片中段偏移,导致叶轮做功能力逐渐降低; 导叶叶片载荷分布受导叶与隔舌相对位置的影响较为明显.当导叶叶片尾缘靠近蜗壳隔舌时,导叶叶片载荷出现吸力面大于压力面的情况.
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彭小娜
朱相源
李国君
江伟
关键词离心泵   导叶   叶片载荷   时序效应   水力性能     
Abstract: Unsteady numerical simulations of internal flow field in a centrifugal pump in different clock positions of a diffuser related to the volute tongue were carried out by using structured-grid and the SST turbulence model and influence of clock effect on blade loadings in the impeller and radial diffuser was studied. The results show that with increasing flow rate the pressure loading on impeller blades and diffuser vanes is decreased gradually, indicating gradually reduced work done by the impeller. The pressure on the diffuser vane suction side is higher than on the pressure side due to influence of the volute tongue. When the tongue is located in the middle of two diffuser vanes, the pressure side of impeller blades is subject to a larger loading, suggesting the impeller has a better capability of working. When a diffuser vane is positioned closely to the volute tongue gradually, the region of the loading on the vane suction side being higher than on the pressure side in the diffuser is extended into the diffusion section from the spiral section. The pressure pulsation intensity in the spiral section increases gradually, however, the intensity in diffusion section is decreased steadily. This phenomenon indicates that the pressure pulsation intensity in the diffusion section is affected mainly by the volute tongue, but the intensity in the spiral section is done basically by the leading edge of diffuser vane.
Key wordscentrifugal pumps   vaned diffuser   loads of blade   clocking effect   hydraulic performance   
收稿日期: 2019-03-05;
引用本文:   
彭小娜,朱相源,李国君等. 导叶时序位置对离心泵叶片载荷影响的数值模拟[J]. 排灌机械工程学报, 2019, 37(3): 192-198.
PENG Xiao-Na,ZHU Xiang-Yuan,LI Guo-Jun et al. Numerical prediction of clock effect of diffuser in volute on blade loading in centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(3): 192-198.
 
[1] CIZMAS P G A, DORNEY D J. The influence of clocking on unsteady forces of compressor and turbine blades[J]. International journal of turbo & jet engines, 2000, 17 (2): 133-142.
[2] SCHENNACH O, PECNIK R, PARADISO B, et al. The effect of vane clocking on the unsteady flow field in a one and a half stage transonic turbine|[C|]/〖KG-*4〗/ Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. |[S.l.|]: American Society of Mechanical Engineers, 2007.
[3] HALDEMAN C W, DUNN M G, BARTER J W, et al. Experimental investigation of vane clocking in a one and onehalf stage high pressure turbine[J]. Journal of turbomachinery, 2005, 127 (3): 512-521.
[4] OUML S, STOFFEL N. Experimental investigation of the clocking effect in a 1.5 stage axial turbine—part I: timeaveraged results[J]. Journal of turbomachinery, 2009, 131 (2): 1003-1014.
[5] JP2〗KNIG S, STOFFEL B, SCHOBEIRI M T. Experimental investigation of the clocking effect in a 1.5 stage axial turbine—part II: unsteady results and boundary layer behavior[J]. Journal of turbomachinery, 2009, 131 (2): 021004.
[6] SCHENNACH O, WOISETSCHLAGER J, FUCHS A, et al. Experimental investigations of clocking in a oneandahalfstage transonic turbine using laser Doppler velocimetry and a fast response aerodynamic pressure probe[J]. Journal of turbomachinery, 2007, 129 (2): 541-552.
[7] XI Guang, LIU Lei, JIANG Hua, et al. Numerical investigation of stator clocking in a centrifugal compressor[J]. Journal of engineering thermophysics,2008,29(9):1495-1498.(in Chinese)
[8] 姜华, 席光, 张炜,等. 离心压缩机静叶间时序效应的实验研究[J]. 工程热物理学报, 2009, 30(6):964-966.
JIANG Hua, XI Guang, ZHANG Wei, et al. Experimental investigation of stator clocking in a centrifugal compressor[J]. Journal of engineering thermophysics, 2009, 30(6):964-966. (in Chinese)
[9] 任晓栋,顾春伟. 1.5级跨声压气机中时序效应的研究[J]. 航空动力学报, 2010 (4): 891-896.
[10] REN Xiaodong, GU Chunwei. Investigation on clocking effect of 1.5stage transonic compressor[J]. Journal of aerospace power, 2010 (4): 891-896. (in Chinese)
[11] 郝苜婷, 谢蓉, 关亮. 时序效应对离心压缩机叶片非定常气动负荷影响[J]. 风机技术, 2016(1):15-21.
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