Applicability of modified drift flux model for bubbly flow in 2-D/3-D rectangular box with various kinds of obstacles

Tatsuya Matsumoto, Akihiro Uchibori, Ryo Akasaka, Toshinori Seki, Shyuji Kaminishi, Koji Morita, Kenji Fukuda

Research output: Contribution to conferencePaperpeer-review


In order to develop analytical tools for the analyses of multi dimensional two-phase flow in channels with obstacles, the modified drift flux model has been applied. Numerical simulations of multi dimensional gas-liquid two-phase flow in a channel, with some kinds of obstacles inserted to simulate a simple sub-channel in the fuel bundle, were carried out. Analytical results were compared with experiments, to show the validity of the modified drift flux model. Experiments were carried out with using an apparatus of 2-D/3-D rectangular box with a perforated plate or a horizontal plate with slit hole or a vertical rod inserted. Nitrogen gas-water adiabatic two phase flow was circulated in the box. The apparatus was made of acrylic resin plates and be able to make the flow inside visualized. Two-phase flow pattern were recorded with a high-speed video camera and the mass flow rate of nitrogen gas was measured with a digital gas-mass flow meter. Comparisons between the experimental results and the numerical ones showed good agreements, thus it was verified the model would be applied for predicting flows in more complex geometry with obstacles.

Original languageEnglish
Number of pages8
Publication statusPublished - 2002
Event10th International Conference on Nuclear Engineering (ICONE 10) - Arlington, VA, United States
Duration: Apr 14 2002Apr 18 2002


Other10th International Conference on Nuclear Engineering (ICONE 10)
Country/TerritoryUnited States
CityArlington, VA

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering


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