2018年8月1日
Estimation of porosity and void fraction profiles in a packed bed of spheres using X-ray radiography
Nuclear Engineering and Design
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- 巻
- 334
- 号
- 1
- 開始ページ
- 90
- 終了ページ
- 95
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.nucengdes.2018.05.003
© 2018 Elsevier B.V. Two-phase flow through porous media must be well understood to develop a severe accident analysis code not only for light water reactor but also sodium-cooled fast reactor. When a core disruptive accident occurs in sodium-cooled fast reactor, the fuel inside the core become melted and interacts with the coolant. As a result, gas-liquid two-phase flow will be formed in the debris bed, which may have porous nature depending on the cooling process. In such condition, the local porosity and its distribution are very important to characterize two-phase flow field in the porous media. In this study, X-ray radiography was applied to measure the local porosity in the packed bed of spheres. The radial profiles were estimated from the chordal profiles measured by the X-ray method and compared with the previous porosity model. In addition, the void fraction radial profiles were also obtained in air-water two-phase flow.
- リンク情報
- ID情報
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- DOI : 10.1016/j.nucengdes.2018.05.003
- ISSN : 0029-5493
- SCOPUS ID : 85047080000