Numerical Analysis of Flow Distribution Characteristics at Core Inlet of Small Reactor under Rolling Condition

Liu Yirui; Dong Xiuchen; Zhang Xin; Yuan Jiangtao

doi:10.13832/j.jnpe.2022.05.0089

Volume 43 Issue 5

Oct. 2022

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Liu Yirui, Dong Xiuchen, Zhang Xin, Yuan Jiangtao. Numerical Analysis of Flow Distribution Characteristics at Core Inlet of Small Reactor under Rolling Condition[J]. Nuclear Power Engineering, 2022, 43(5): 89-94. doi: 10.13832/j.jnpe.2022.05.0089

Citation:

Liu Yirui, Dong Xiuchen, Zhang Xin, Yuan Jiangtao. Numerical Analysis of Flow Distribution Characteristics at Core Inlet of Small Reactor under Rolling Condition[J]. Nuclear Power Engineering, 2022, 43(5): 89-94. doi: 10.13832/j.jnpe.2022.05.0089

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Numerical Analysis of Flow Distribution Characteristics at Core Inlet of Small Reactor under Rolling Condition

doi: 10.13832/j.jnpe.2022.05.0089

Navy Submarine Academy , Qingdao, Shandong, 266199, China

Received Date: 2021-09-23
Accepted Date: 2021-09-23
Rev Recd Date: 2022-03-10
Publish Date: 2022-10-12

Abstract

Abstract

In order to study the flow distribution characteristics of coolant at the inlet of reactor core during forced circulation of small reactor under rolling condition, a small reactor model is established by using CFD software STAR-CCM+ with numerical calculation method, model verification is completed, and the flow distribution characteristics at the inlet of reactor core under rolling condition are studied. The results show that the greater the distance from the core inlet to the rolling axis and the greater the rolling amplitude, the greater the coolant flow fluctuation at the core inlet. The long-period rolling has little effect on the flow, but the coolant flow will jump with the decrease of the cycle. The uneven distribution of coolant at the core inlet increases with the increase of rolling angle, but it is not sensitive to the change of rolling cycle.
- Small reactor,
- Flow distribution,
- Rolling condition,
- Forced circulation

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References(16)

References

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