Research on Reflood Model of Narrow Channel Based on RELAP5

ZENG Wei; YU Hong-xing; SUN Yu-fa; LI Feng

Mar. 2025

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ZENG Wei, YU Hong-xing, SUN Yu-fa, LI Feng. Research on Reflood Model of Narrow Channel Based on RELAP5[J]. Nuclear Power Engineering, 2013, 34(3): 50-57.

Citation:

ZENG Wei, YU Hong-xing, SUN Yu-fa, LI Feng. Research on Reflood Model of Narrow Channel Based on RELAP5[J]. Nuclear Power Engineering, 2013, 34(3): 50-57.

ZENG Wei, YU Hong-xing, SUN Yu-fa, LI Feng. Research on Reflood Model of Narrow Channel Based on RELAP5[J]. Nuclear Power Engineering, 2013, 34(3): 50-57.

Citation:

ZENG Wei, YU Hong-xing, SUN Yu-fa, LI Feng. Research on Reflood Model of Narrow Channel Based on RELAP5[J]. Nuclear Power Engineering, 2013, 34(3): 50-57.

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Research on Reflood Model of Narrow Channel Based on RELAP5

Science and Technology on Reactor System Design Technology, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2012-06-05
Rev Recd Date: 2012-09-13

Available Online: 2025-03-08

Abstract

Abstract

This paper evaluates the applicability of RELAP5 reflood models for the narrow channel based on the Saxena experiment.The calculated results show that RELAP5 overestimates the quench front velocity and underestimates the wall temperature.Combined the post-DNB thermal-hydraulic characteristics in the narrow channel,the interphase drag,single vaper,film boiling and critical heat flux model were modified.The calculated results based on the new reflood model agree better with the Saxena experiment.
- Narrow channel,
- Reflood,
- RELAP5,
- Film boiling