| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
We studied the formation of number density distribution in particle/bubble suspension, in which the dispersed bodies rise/sink because of the density difference. We measured the liquid phase velocity of dense particle suspension via particle image velocimetry applying laser induced fluorescence and photobleaching molecular tagging velocimetry. The intensity of velocity fluctuation of the liquid phase and the particle velocity relative to the liquid phase were measured. We found the collective motion of dispersed bodies are related to the gravity current instability, i.e. roll wave, and border resolution of concentration interface, i.e. sharpness of density clarification.
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