PHASE-FIELD MODELING OF MOLTEN ZIRCONIUM OXIDATION COUPLED WITH FLOW AND HEAT TRANSPORT

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Abstract

A phase-field model coupled with flow and heat transport is developed to study the oxidation of molten Zr alloys. This model uses the phase-field method to capture the convection and diffusion of oxygen in melt and the oxidation reaction between Zr and oxygen to form ZrO2. The phase-field model is verified by comparing it with published one-dimensional oxidation experimental results. The model, which is fully coupled with flow and heat transport, can describe the complex interaction in the process of melt oxidation, including thermal properties variation and oxide crust formation. The results of 2D molten Zr oxidation in oxygen atmosphere simulations show that the melt flow trend strengthens the oxidation kinetics.

Original languageEnglish
Title of host publicationProceedings of the 30th International Conference on Nuclear Engineering "Nuclear, Thermal, and Renewables
Subtitle of host publicationUnited to Provide Carbon Neutral Power", ICONE 2023
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)9784888982566
StatePublished - 2023
Event30th International Conference on Nuclear Engineering, ICONE 2023 - Kyoto, Japan
Duration: 21 May 202326 May 2023

Publication series

NameInternational Conference on Nuclear Engineering, Proceedings, ICONE
Volume2023-May

Conference

Conference30th International Conference on Nuclear Engineering, ICONE 2023
Country/TerritoryJapan
CityKyoto
Period21/05/2326/05/23

Keywords

  • Molten zirconium
  • Oxidation
  • Phase-field model

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