| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.2396 |
| 발표분야 |
양승만 교수 추모 심포지엄 : 유체, 입자, 그리고 빛(Fluids, Particles, and Light) |
| 제목 |
Brachistochrone problem with liquid drops on a superhydrophobic surface |
| 초록 |
A trajectory that will carry a particle from one place to another in the shortest time is called the brachistochrone curve. In 17th century, Johann Bernoulli posed the brachistochrone problem for the first time and discovered that the trajectory on a curve without friction is a cycloid. In most brachistochrone problems, a movable solid particle, especially a sphere, has been considered assuming its free movement. Generally, the transport of small liquid drops on a solid surface is not a simple process, because the nature of the contact between the two phases is complicated. However, liquid drops can easily roll off on a superhydrophobic surface. Thus, the drops can also be treated as an easily movable particle on the surface. In this study, the brachistochrone curves are discussed with water drops on a superhydrophobic surface. We expect that this study will be helpful for the applications in droplet transport technology and lab-on-a-chip systems where discrete droplets are manipulated. |
| 저자 |
Do Hyun Kim1, Kwangseok Seo2, Minyoung Kim1
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| 소속 |
1Department of Chemical and Biomolecular Engineering, 2Korea Advanced Institute of Science and Technology |
| 키워드 |
Brachistochrone; Superhydrophobic surface; Droplet transport; Cycloidal superhydrophobic track
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| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
