Study on flow characteristics in gas-molten metal mixture pool

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Y. Saito
  • K. Mishima
  • Y. Tobita
  • K. Konishi
  • M. Matsubayashi

Detail(s)

Original languageEnglish
Pages (from-to)233-245
Journal / PublicationNuclear Engineering and Design
Volume196
Issue number2
Publication statusPublished - 2 Mar 2000
Externally publishedYes

Abstract

As part of basic research on the flow characteristics of a two-phase mixture pool under severe accident of fast breeder reactor (FBR), visualization and measurement of nitrogen gas-molten lead/bismuth two-phase flow in a rectangular pool were performed by using the neutron radiography technique. Measurements of drag coefficient of a single bubble and bubble shape regime showed that the relationship between the shape, size and the rising velocity of a single isolated nitrogen bubble in the molten lead/bismuth was not much different from that for an ordinary one. Appropriate correlation for drift velocity and drag coefficient between phases were recommended based on the drift flux correlation of measured pool void fraction. One- and two-dimensional analyses were performed by using a next generation computational code for safety analysis of severe accident of FBRs, SIMMER-III with various drag coefficient models. It was revealed that Kataoka-Ishii's equation was suitable basically for estimation of drift velocity, namely, drag force between phases.

Bibliographic Note

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Citation Format(s)

Study on flow characteristics in gas-molten metal mixture pool. / Hibiki, T.; Saito, Y.; Mishima, K. et al.
In: Nuclear Engineering and Design, Vol. 196, No. 2, 02.03.2000, p. 233-245.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review