2000年3月
Study on flow characteristics in gas-molten metal mixture pool
NUCLEAR ENGINEERING AND DESIGN
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- 巻
- 196
- 号
- 2
- 開始ページ
- 233
- 終了ページ
- 245
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S0029-5493(99)00293-9
- 出版者・発行元
- ELSEVIER SCIENCE SA
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. (C) 2000 Elsevier Science S.A. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/S0029-5493(99)00293-9
- ISSN : 0029-5493
- J-Global ID : 200902152459826277
- Web of Science ID : WOS:000085363000009