Microscopic Young's equation on heterogeneous solid surfaces with pinning sites
| Project/Area Number |
18K03978
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 19020:Thermal engineering-related
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
大森 健史 大阪市立大学, 大学院工学研究科, 准教授 (70467546)
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 分子動力学 / 濡れ / 液体の界面 / 界面 / 界面エネルギー |
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| Outline of Final Research Achievements |
Upon wetting of a liquid on a solid surface, droplet on solid for instance, a certain force has to be exerted on the edge of the droplet to keep the droplet immobile. We carried out molecular dynamics simulations of the pinning phenomena and elucidated the mechanism, e.g., what force acts on what situation. From this result, we proposed a theoretical model to predict the pinning force. These results can be applied to various engineering fields including coating etc.
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| Academic Significance and Societal Importance of the Research Achievements |
液体が固体に触れる濡れという現象は、日常生活で目にしないことはないほど我々の生活に密着しているが、それでいて、流体力学の問題としては界面という部分を含むためきわめて難しい。本研究はその課題に分子動力学シミュレーションという手法を用いて取り組み、ピニングが起きるメカニズムの一部を明らかに、またそれを予測する方法を提案した。
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Report
(5 results)
Research Products
(73 results)
