2021 Fiscal Year Final Research Report
Establishment of guideline for scale-up method of ultrasonic processing by simultaneous control of micro- and macro- phenomena
| Project/Area Number |
20K15079
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 27020:Chemical reaction and process system engineering-related
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | Ultrasonic processing / Numerical simulation / Mass transfer |
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| Outline of Final Research Achievements |
In order to establish scale-up guideline for ultrasonic treatment when ultrasound is irradiated in liquids, the present study developed a numerical simulation model capable of integrating the micro-scopic oscillations of cavitation bubbles, macro-scopic acoustic streaming and ultrasonic wave propagation. Through the developed numerical simulation model, it was found that the turbulent diffusion was increased by providing an external flow, resulting in enhancement of whole reaction rate in a vessel.
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| Free Research Field |
移動現象論
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| Academic Significance and Societal Importance of the Research Achievements |
超音波処理はナノ粒子合成やエマルジョン化、表面洗浄や有機物分解等の様々な応用が期待されているが、小さい領域でのみしか反応を進行させられないことが問題であった。本研究によって、スケールアップ、反応槽全体での処理効率向上のための指針と方法を開発することに成功した。これにより、超音波処理の様々な応用範囲での活用が期待される。。
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