Numerical Simulation of Thermal Striping in Pressurizer Surge Line

Cao Simin; Huang Wei; Yang Ming

doi:10.13832/j.jnpe.2017.S2.0055

Volume 38 Issue S2

Feb. 2025

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Cao Simin, Huang Wei, Yang Ming. Numerical Simulation of Thermal Striping in Pressurizer Surge Line[J]. Nuclear Power Engineering, 2017, 38(S2): 55-59. doi: 10.13832/j.jnpe.2017.S2.0055

Citation:

Cao Simin, Huang Wei, Yang Ming. Numerical Simulation of Thermal Striping in Pressurizer Surge Line[J]. Nuclear Power Engineering, 2017, 38(S2): 55-59. doi: 10.13832/j.jnpe.2017.S2.0055

Cao Simin, Huang Wei, Yang Ming. Numerical Simulation of Thermal Striping in Pressurizer Surge Line[J]. Nuclear Power Engineering, 2017, 38(S2): 55-59. doi: 10.13832/j.jnpe.2017.S2.0055

Citation:

Cao Simin, Huang Wei, Yang Ming. Numerical Simulation of Thermal Striping in Pressurizer Surge Line[J]. Nuclear Power Engineering, 2017, 38(S2): 55-59. doi: 10.13832/j.jnpe.2017.S2.0055

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Numerical Simulation of Thermal Striping in Pressurizer Surge Line

doi: 10.13832/j.jnpe.2017.S2.0055

1. Nuclear Power Institute of China, Chengdu, 610213, China;
2. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin, 150001, China

Received Date: 2017-10-20
Rev Recd Date: 2017-11-06

Abstract

Abstract

This paper studies the thermal striping in the pressurizer surge line to find the reason causing the phenomenon and acquire the temperature oscillation frequency and amplitude during reactor heat up processes. Numerical studies on the thermal striping were carried out by using dynamic Smagorinsky eddy viscosity model. The simulation results show that the vortex caused by contrary flew between hot and cold fluid around the interface is the reason for the thermal striping. Thermal striping in surgeline makes the temperature of the pipe inner wall oscillate from 4℃ to 20℃and the frequency is lower than 5 Hz.
- Surge line,
- Thermal striping,
- Dynamic large eddy simulation,
- Numerical simulation