Analysis on transient hydrodynamic characteristics of cavitation process for reactor coolant pump

被引：0
|
作者：
Wang, Xiu-Li [1 ]
Wang, Peng [1 ]
Yuan, Shou-Qi [1 ]
Zhu, Rong-Sheng [1 ]
Fu, Qiang [1 ]
机构：
[1] Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang
来源：
Wang, Xiu-Li | 1600年 / Atomic Energy Press卷 / 48期
关键词：
Cavitation; Hydrodynamic characteristics; Numerical simulation; Reactor coolant pump;
D O I：
10.7538/yzk.2014.48.08.1421
中图分类号：
学科分类号：
摘要：
The reactor coolant pump hydrodynamic characteristics at different cavitation conditions were studied by using flow field analysis software ANSYS CFX, and the corresponding data were processed and analyzed by using Morlet wavelet transform and fast Fourier transform. The results show that gas content presents the law of exponential function with the pressure reduction or time increase. In the cavitation primary condition, the pulsation frequency of head for the reactor coolant pump is mainly low frequency, and the main frequency of pressure pulsation is still rotation frequency while the effect of the pressure pulsation caused by cavitation on main frequency is not obvious. With the development of cavitation, the pressure fluctuation induced by cavitation becomes more serious especially for the main frequency, secondary frequency and pulsating amplitude while the head pulsation frequency is given priority to low frequency pulse. Under serious cavitation condition, the head pulsation frequency is given priority to irregular changes of pulse high frequency, and also contains almost regular changes of low frequency.
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页码：1421 / 1427
页数：6
相关论文
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