Evaluation of flow structure in packed-bed tube by visualization experiment

Masumi Okumura, Kazuhisa Yuki, Hidetoshi Hashizume, Akio Sagara

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


In order to apply Flibe as a liquid blanket material, a heat transfer enhancement system is required because the Flibe is a high Prandtl number fluid. The purpose of this study is to visualize the detailed flow fields in the packed-bed tube, which is expected to be utilized for the heat transfer enhancement. The visualization inside the packed-bed tube from various angles is performed by using a PIV system with a refractive index matching technique. Pressure loss characteristics in the packed-bed tube whose sphere diameter is half the length of tube inside diameter are evaluated and it is found that a drag model could be suitable to estimate the pressure loss of the packed-bed tube.

Original languageEnglish
Pages (from-to)1089-1093
Number of pages5
JournalFusion Science and Technology
Issue number4
Publication statusPublished - 2005 May

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


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