| Project/Area Number |
26820339
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Nihon University |
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Principal Investigator |
ISHIGAMI Toru 日本大学, 生物資源科学部, 助教 (70595850)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | phase field model / 界面活性剤 / エマルション / 数値シミュレーション / フェーズフィールド法 |
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| Outline of Final Research Achievements |
In this study, we developed numerical simulation model that can describe emulsion flow in the presence of surfactant. The simulation model based on three-way coupled scheme combining the free-interfacial flow based on phase field model, the surfactant concentration field and adsorption/desorption of surfactant to interface was constructed and then validated. To investigate the effect of surfactant on the emulsion flow, the surfactant concentration distribution around the interface and the collision of droplets in the presence of surfactant were simulated. The resultant distribution of surfactant concentration was well fitted with theoretical calculation based on Langmuir adsorption. In addition, the coalescence of droplets was suppressed in the presence of surfactant and the interfacial motions differed significantly with and without surfactant, indicating that the simulation model developed in this study is useful for prediction of emulsion flow with surfactant.
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