Simulation Research on Additional Mass of PWR Fuel Assembly

Guo Yan; Zhang Guoliang; Liu Huan; Li Weicai

doi:10.13832/j.jnpe.2023.02.0129

Volume 44 Issue 2

Apr. 2023

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Guo Yan, Zhang Guoliang, Liu Huan, Li Weicai. Simulation Research on Additional Mass of PWR Fuel Assembly[J]. Nuclear Power Engineering, 2023, 44(2): 129-135. doi: 10.13832/j.jnpe.2023.02.0129

Citation:

Guo Yan, Zhang Guoliang, Liu Huan, Li Weicai. Simulation Research on Additional Mass of PWR Fuel Assembly[J]. Nuclear Power Engineering, 2023, 44(2): 129-135. doi: 10.13832/j.jnpe.2023.02.0129

Guo Yan, Zhang Guoliang, Liu Huan, Li Weicai. Simulation Research on Additional Mass of PWR Fuel Assembly[J]. Nuclear Power Engineering, 2023, 44(2): 129-135. doi: 10.13832/j.jnpe.2023.02.0129

Citation:

Guo Yan, Zhang Guoliang, Liu Huan, Li Weicai. Simulation Research on Additional Mass of PWR Fuel Assembly[J]. Nuclear Power Engineering, 2023, 44(2): 129-135. doi: 10.13832/j.jnpe.2023.02.0129

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Simulation Research on Additional Mass of PWR Fuel Assembly

doi: 10.13832/j.jnpe.2023.02.0129

China Nuclear Power Technology Research Institute, Shenzhen, Guangdong, 518026, China

Received Date: 2022-06-02
Rev Recd Date: 2022-08-31
Publish Date: 2023-04-15

Abstract

Abstract

In order to accurately explore the influence of fluid-structure interaction behavior between reactor coolant and fuel assembly on the vibration characteristics of fuel assembly, this paper takes the pressurized water reactor (PWR) fuel assembly as the research object, applies the computational fluid dynamics (CFD) software FLUENT platform and the dynamic mesh technology thereof and calculates the additional mass of fuel assembly under separate motion conditions of fuel assembly and core baffle by establishing the fuel assembly simulation rod bundle, core baffle and coolant model. The results show that the mean value of the fuel assembly's additional mass coefficient is 2.4712 under the fuel assembly motion condition and –3.4713 under the baffle motion condition, both with a deviation of less than 5% from the literature value. After superimposing of additional masses, the deviation between the calculated value of the fuel assembly vibration frequency and the underwater vibration test result is less than 5%, which verifies the rationality of the analysis method. The simulation calculation method established in this study can be used to calculate the additional mass of PWR fuel assembly.
- Pressurized water reactor (PWR),
- Fuel assembly,
- Additional mass,
- Fluid-structure interaction

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References(12)

References

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