Development and Verification of Critical Leakage-Rate Analysis Program for Through-Wall Cracks

GAO Yongjun

Volume 33 Issue 2

Mar. 2025

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Article Navigation > Nuclear Power Engineering > 2012 > 33(2): 88-91

GAO Yongjun. Development and Verification of Critical Leakage-Rate Analysis Program for Through-Wall Cracks[J]. Nuclear Power Engineering, 2012, 33(2): 88-91.

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GAO Yongjun. Development and Verification of Critical Leakage-Rate Analysis Program for Through-Wall Cracks[J]. Nuclear Power Engineering, 2012, 33(2): 88-91.

GAO Yongjun. Development and Verification of Critical Leakage-Rate Analysis Program for Through-Wall Cracks[J]. Nuclear Power Engineering, 2012, 33(2): 88-91.

Citation:

GAO Yongjun. Development and Verification of Critical Leakage-Rate Analysis Program for Through-Wall Cracks[J]. Nuclear Power Engineering, 2012, 33(2): 88-91.

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Development and Verification of Critical Leakage-Rate Analysis Program for Through-Wall Cracks

GAO Yongjun

Technology OR Reactor System Design Teclmology Laboratory, Nuclear Power Institute ofChina, Chengdu, 610041, China

Received Date: 2010-12-23
Rev Recd Date: 2011-04-26

Available Online: 2025-03-08

Abstract

Abstract

The calculation models and PC-Leakflow2 program,which give careful considerations to the effect of the crack-morphology parameters,are developed for evaluating the critical leakage-rate squirted from a circumferential through-wall crack（TWC）.The calculation flow diagrams and the solving method of PC-Leakflow2 program are described.The sensitivity analyses are conducted for each input parameter having an effect on the critical leakage-rate.PC-Leakflow2 program is validated by comparing the calculation results with the relevant critical leakage-rate experimental data given in the references.The calculation results pro-duced by PC-Leakflow2 program and the classic critical-flow models for the same benchmark problem indi-cate that the magnitude of the critical leakage-rate is strongly influenced by the crack-morphology parameters.The classic critical-flow models significantly over estimate the critical leakage-rate of a compact TWC.
- Through-wall crack,
- Critical leakage-rate,
- Thermo-hydraulic model,
- Validation calculation,
- PC-Leakflow2 program

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