Effect of Clearance of Rotor-Stator Cascade on Pressure Fluctuation in Secondary Circuit Coolant Pump for Sodium-Cooled Fast Reactor

doi:10.13832/j.jnpe.2020.01.0127

	Effect of Clearance of Rotor-Stator Cascade on Pressure Fluctuation in Secondary Circuit Coolant Pump for Sodium-Cooled Fast Reactor
	Yang, Congxin 1,3; Liu, Man 1,3; Wang, Xiuyong 1,3; Yu, Hongchang 2; Niu, Hongjun 2; Qian, Chen 1,3; Liu, Zhidan 1,3
刊名	Hedongli Gongcheng/Nuclear Power Engineering
	2020-02-15
卷号	41 期号:1 页码:127-133
关键词	Coolants Impellers Numerical methods Numerical models Pressure effects Stators Timing circuits Turbulence models Characteristics of pressures Coolant pumps High frequency fluctuations K-Omega turbulence model Pressure fluctuation Radial forces Stator cascades Unsteady numerical simulations
ISSN号	02580926
DOI	10.13832/j.jnpe.2020.01.0127
英文摘要	In order to study the effect of the clearance of rotor-stator cascade on the pressure fluctuation in the secondary circuit coolant pump for sodium-cooled fast reactors, the unsteady numerical simulation method based on SST k-ω turbulence model was applied on five model pumps with different clearance of rotor-stator cascade. The relative clearance of rotor-stator cascade of five model pumps were 3.030%, 4.545%, 6.060%, 7.575% and 9.090%, respectively. The characteristics of pressure fluctuation and radial force on the rotor were obtained by unsteady numerical simulation, and the comparison and analysis were made. The results show that both of the head and efficiency of the pump with a relative clearance of rotor-stator cascade of 7.575% are better than those of any other four model pumps. The main frequency of the pressure fluctuation of each measuring point in the guide vane passage is the impeller blade passing frequency, and the amplitude at the impeller blade passing frequency of the pressure fluctuation of each measuring point gradually decreases along the guide vane inlet to the outlet direction. With the increasing of the clearance of rotor-stator cascade, the amplitude at the impeller blade passing frequency of the pressure fluctuation at each measuring point and the radial force fluctuation of the rotor are gradually reduced, and the high frequency fluctuation component decreases. Meanwhile, the fluctuation of the magnitude and direction of the radial force vector of the rotor is gradually weakened. © 2020, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.
语种	中文
出版者	Atomic Energy Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115655]
专题	能源与动力工程学院
作者单位	1.Key Laboratory of Fluid Machinery and Systems of Gansu Province, Lanzhou; 730050, China; 2.Shenyang Blower Works Group Nuclear Pump Co. Ltd., Shenyang; 110869, China 3.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Yang, Congxin,Liu, Man,Wang, Xiuyong,et al. Effect of Clearance of Rotor-Stator Cascade on Pressure Fluctuation in Secondary Circuit Coolant Pump for Sodium-Cooled Fast Reactor[J]. Hedongli Gongcheng/Nuclear Power Engineering,2020,41(1):127-133.
APA	Yang, Congxin.,Liu, Man.,Wang, Xiuyong.,Yu, Hongchang.,Niu, Hongjun.,...&Liu, Zhidan.(2020).Effect of Clearance of Rotor-Stator Cascade on Pressure Fluctuation in Secondary Circuit Coolant Pump for Sodium-Cooled Fast Reactor.Hedongli Gongcheng/Nuclear Power Engineering,41(1),127-133.
MLA	Yang, Congxin,et al."Effect of Clearance of Rotor-Stator Cascade on Pressure Fluctuation in Secondary Circuit Coolant Pump for Sodium-Cooled Fast Reactor".Hedongli Gongcheng/Nuclear Power Engineering 41.1(2020):127-133.