Experimental study on molten metal spreading and deposition behaviors on wet surface

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

17 Scopus Citations
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Author(s)

  • Takahito Ogura
  • Tatsuki Matsumoto
  • Shuichiro Miwa
  • Takashi Hibiki
  • Michitsugu Mori

Detail(s)

Original languageEnglish
Pages (from-to)72-78
Journal / PublicationProgress in Nuclear Energy
Volume106
Publication statusPublished - 1 Jul 2018
Externally publishedYes

Abstract

In this paper, experimental investigation of the molten metal jet's colliding and spreading behaviors on the flat steel surface covered with water layer was carried out. High-frequency induction heating system was utilized to produce the molten metal sample and it was released to the wet surface from a fixed elevation. As the molten metal collides against the surface, it rapidly goes through solidification while spreading on the wet surface. High-speed thermo-camera was utilized to measure the molten metal's surface temperature during the spreading transient. Once the molten metal completely solidifies, molten metal's spread area and thickness were measured. From the obtained database, a dimensional analysis was conducted to investigate the key parameters responsible for the molten metal spreading on the wet surface. Based on the key non-dimensional parameters identified in the current analysis, the new empirical correlation was proposed. Its predictive capability was found to be 18.9% in mean absolute relative deviation.

Research Area(s)

  • MCCI, Molten fuel relocation, Molten metal, Severe accident, Thermal-hydraulics

Bibliographic Note

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Citation Format(s)

Experimental study on molten metal spreading and deposition behaviors on wet surface. / Ogura, Takahito; Matsumoto, Tatsuki; Miwa, Shuichiro et al.
In: Progress in Nuclear Energy, Vol. 106, 01.07.2018, p. 72-78.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review