Development of a solidification model for TEXAS-VI code and application to FARO L14 analysis

R. H. Chen, G. H. Su, S. Z. Qiu, M. L. Corradini

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A molten fuel breakup model that considers solidification effects is proposed in this paper. Both the effect of a solid crust layer and the effect of thermal stresses on the fuel particle fragmentation are taken into account in this model. This solidification model predicts the transient temperature profile and crust layer thickness of the fuel particle by numerically solving the Fourier heat conduction equation under specific initial and boundary conditions. This fuel particle breakup model and transient temperature profile model were incorporated into the TEXAS fuel-coolant interaction (FCI) model; this revised TEXAS FCI model is called TEXAS-VI. This paper compares TEXAS-VI to the FARO L14 experiment (FARO L14), for which fuel-coolant mixing and quench data have been published. The FARO L14 pressure history, liquid water pool temperature, and vapor temperature were found to be in good agreement with the revised model predictions. This mixing behavior will also have an impact on FCI explosion energetics. The solidification effect is under investigation for energetics.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalNuclear Science and Engineering
Volume173
Issue number1
Publication statusPublished - 2013 Jan

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Solidification
Coolants
Drop breakup
Temperature
Heat conduction
Thermal stress
Explosions
Molten materials
Vapors
Boundary conditions
Liquids
Water
Experiments

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

Cite this

Development of a solidification model for TEXAS-VI code and application to FARO L14 analysis. / Chen, R. H.; Su, G. H.; Qiu, S. Z.; Corradini, M. L.

In: Nuclear Science and Engineering, Vol. 173, No. 1, 01.2013, p. 1-14.

Research output: Contribution to journalArticle

Chen, R. H. ; Su, G. H. ; Qiu, S. Z. ; Corradini, M. L. / Development of a solidification model for TEXAS-VI code and application to FARO L14 analysis. In: Nuclear Science and Engineering. 2013 ; Vol. 173, No. 1. pp. 1-14.
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