Study on Calculation Method of Courant Limit in Thermal Hydraulic System Analysis Code

Li Jiangkuan; Huang Tao; Lin Meng; Wang Xu; Chen Junjie

doi:10.13832/j.jnpe.2021.04.0063

Volume 42 Issue 4

Aug. 2021

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Li Jiangkuan, Huang Tao, Lin Meng, Wang Xu, Chen Junjie. Study on Calculation Method of Courant Limit in Thermal Hydraulic System Analysis Code[J]. Nuclear Power Engineering, 2021, 42(4): 63-67. doi: 10.13832/j.jnpe.2021.04.0063

Citation:

Li Jiangkuan, Huang Tao, Lin Meng, Wang Xu, Chen Junjie. Study on Calculation Method of Courant Limit in Thermal Hydraulic System Analysis Code[J]. Nuclear Power Engineering, 2021, 42(4): 63-67. doi: 10.13832/j.jnpe.2021.04.0063

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Study on Calculation Method of Courant Limit in Thermal Hydraulic System Analysis Code

doi: 10.13832/j.jnpe.2021.04.0063

1.
School of nuclear science and engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
2.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2020-07-01
Rev Recd Date: 2021-03-31
Publish Date: 2021-08-15

Abstract

Abstract

In order to analyze the influence of different Courant limit calculation methods on the calculation speed and accuracy of reactor thermal hydraulic system analysis code, two kinds of Courant limit calculation methods were studied: synthesis method and grouping method. The calculation principles of the two methods were analyzed, and the two methods were adopted to calculate the steady-state condition and large break loss of coolant accident condition of a PWR respectively. The results show that there is no significant difference between the two methods in steady-state condition; in the case of large break loss of coolant accident with drastic change of velocity field, the synthesis method can obtain more accurate calculation results, but it takes more time, and the grouping method can obtain faster calculation speed, however its calculation accuracy is lower.
- Thermal hydraulic,
- System code,
- Courant limit,
- RELAP5

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References(5)

References

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