2017 Fiscal Year Final Research Report
Active control of self-motion using Marangoni effect by electromagnetic field
| Project/Area Number |
15K05897
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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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| Research Field |
Intelligent mechanics/Mechanical systems
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| Research Institution | Wakayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
幹 浩文 和歌山大学, システム工学部, 講師 (20403363)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 自発運動 / マランゴニー効果 / 表面張力 / 界面活性剤 / 電界 / 磁界 / イオン液体 |
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| Outline of Final Research Achievements |
Active control of propulsion force of self-motion driven by chemical Marangoni effect using application of electric and magnetic fields, has been studied. The motion is generated by reaction of convection that is induced by surface tension gradient due to anisotropic distribution of surface active molecules on substrates. Effects of electric field on Marangoni driven spreading of ionic surface active materials on aqueous surface were evaluated. Spreading velocity of the most surface active materials changed by the application of electric field (10kV/cm). Application of magnetic field on surface of solution of surfactant with magnetism also induced a convection on the solution surface. Applications of the electric and magnetic fields are considered to change density and orientation of surface active molecules on liquid surfaces, and hence change Marangoni convection. Application of electric field decreased propulsion force of locomotors driven by ionic surface active materials.
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| Free Research Field |
Mechanical engineering
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