Transient effects for flow interaction in the flow field of nuclear main pump

doi:10.13334/j.0258-8013.pcsee.2015.04.020

	Transient effects for flow interaction in the flow field of nuclear main pump
	Li, Yibin; Li, Rennian; Wang, Xiuyong; Bi, Zhen; Hu, Penglin; Cheng, Xiaorui
	2015-02-20
发表期刊	Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
ISSN	02588013
卷号	35 期号:4 页码:922-928
摘要	In order to reveal flow interference effects of impeller and guide vane of a nuclear main pump, adopting similar conversion algorithm and multiple parameters matching method, based on RNG k-Ε turbulence model and block structured grids, unsteady numerical simulation was carried on the model pump whose shrinkage coefficient is 0.5. The results show that the pulsation amplitude of the head is related to operating conditions, the minimal value is on the rated condition, and it will gradually increase when the working condition deviate from the optimal point. The unstable flow pulsation effect appears in the inner flow passage of the guide vane, the transient effect of the flow pulsation of the inside guide vane is not obvious when the working condition is above 0. 8Qd, ; the flow pulsation within the guide vane tends to be unstable when the working condition is under 0.8Qd,. Considering the hydraulic stability of the unit, working condition should be above 0.8 Qd. Rotor-stator interaction induces periodic pulsation of the guide vane static pressure distribution, the average pulsation amplitude on the pressure side is maximum, and the suction side is minimum. The pressure pulsation period is related to the impeller blade number. The guide vane static pressure distribution is related to the relative position of the impeller trailing edge and the guide vane leading edge; the impeller trailing edge caused the blockage effect on the guide vane inlet flow, and it's the main reason causes the guide vane static pressure pulsation. ©2015 Chin. Soc. for Elec. Eng.
关键词	Computer simulation Impellers Numerical methods Numerical models Pressure distribution Stators Turbulence models Guide vane Multiple parameters Operating condition Pulsation Rotor-stator interactions Shrinkage coefficients Static pressure distributions Unsteady numerical simulations
DOI	10.13334/j.0258-8013.pcsee.2015.04.020
收录类别	EI
语种	中文
出版者	Chinese Society for Electrical Engineering
EI入藏号	20151200650653
EI主题词	Flow interactions
EI分类号	601.2 Machine Components - 631.1 Fluid Flow, General - 705.1 Electric Machinery, General - 723.5 Computer Applications - 921 Mathematics - 921.6 Numerical Methods - 931.1 Mechanics
来源库	Compendex
分类代码	601.2 Machine Components - 631.1 Fluid Flow, General - 705.1 Electric Machinery, General - 723.5 Computer Applications - 921 Mathematics - 921.6 Numerical Methods - 931.1 Mechanics
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/112376
专题	能源与动力工程学院新能源学院
作者单位	School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; Gansu Province; 730050, China
第一作者单位	新能源学院
第一作者的第一单位	新能源学院
推荐引用方式 GB/T 7714	Li, Yibin,Li, Rennian,Wang, Xiuyong,et al. Transient effects for flow interaction in the flow field of nuclear main pump[J]. Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering,2015,35(4):922-928.
APA	Li, Yibin,Li, Rennian,Wang, Xiuyong,Bi, Zhen,Hu, Penglin,&Cheng, Xiaorui.(2015).Transient effects for flow interaction in the flow field of nuclear main pump.Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering,35(4),922-928.
MLA	Li, Yibin,et al."Transient effects for flow interaction in the flow field of nuclear main pump".Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering 35.4(2015):922-928.