| Budget Amount *help |
¥44,460,000 (Direct Cost: ¥34,200,000、Indirect Cost: ¥10,260,000)
Fiscal Year 2021: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2020: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2019: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2018: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
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| Outline of Final Research Achievements |
Closure relations required for numerical simulation of bubbly flow in a slurry bubble column of high void fraction and high particle concentration are developed and implemented in numerical methods based on a bubble tracking method and a hybrid method based on interface tracking and multi-fluid models. The bubble drag- and lift-coefficient models developed in this study are applicable to various fluid property systems and a wide range of bubble diameter. The bubble dissolution model with chemical absorption, which was developed through precise experiments, is a very useful outcome. The developed numerical method, which can predict a reactive slurry bubble flow of high void fraction and high particle concentration in a Fisher-Tropsh reactor, is of great use in bubble column design.
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