Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Sungchan Yun"'
Dynamics of Coalesced Droplet Jumping on Superhydrophobic Surface with Asymmetrically Wettable Ridge
Autor:
Sungchan Yun
Publikováno v:
Applied Sciences, Vol 14, Iss 9, p 3584 (2024)
Spontaneous detachment from superhydrophobic surfaces can be induced by the coalescence of two or more adjacent droplets. The phenomena have provided implications for the self-removal of droplets in the fields of self-cleaning, anti-icing, and heat t
Externí odkaz:
https://doaj.org/article/cecd440fb8c145c5a4d8dad34e0abdc2
Publikováno v:
Micromachines, Vol 9, Iss 10, p 504 (2018)
Electroosmotic flow (EOF) is one of the most important techniques in a microfluidic system. Many microfluidic devices are made from a combination of different materials, and thus asymmetric electrochemical boundary conditions should be applied for th
Externí odkaz:
https://doaj.org/article/8eb473e6beb843d0a73f446a5985e9ad
Publikováno v:
Micromachines, Vol 9, Iss 6, p 265 (2018)
Electroosmotic flow (EOF) is widely used in microfluidic systems and chemical analysis. It is driven by an electric force inside microchannel with highly charged boundary conditions. In practical applications, electrochemical boundary conditions are
Externí odkaz:
https://doaj.org/article/1a75e8c88c9b4757ba09620a0d9b43f4
Publikováno v:
Micromachines, Vol 8, Iss 5, p 165 (2017)
In this paper, a systematic study of a fully developed electroosmotic flow of power-law fluids in a rectangular microchannel bounded by walls with different zeta potentials is described. Because the upper and lower layers of most microchannels are ma
Externí odkaz:
https://doaj.org/article/cee64cb7100342a0a36851093513c56e
Autor:
Jaeung Kim, Sungchan Yun
Publikováno v:
Korean Journal of Metals and Materials. 61:371-378
Compound materials have two or more unmixable parts that retain a shared surface with one another for engineering purposes. Such compound materials, like the Janus or core–shell configurations, create opportunities for relevant applications because
Autor:
Sungchan Yun, WooSeok Choi
Publikováno v:
Polymers; Volume 14; Issue 12; Pages: 2322
Janus drops are thermodynamically stable when a high-viscosity fluid is imposed on a low-viscosity fluid. To understand physical mechanisms in Janus drop impact on macrotextured surfaces, several challenges in finding parameters or strategies still r
Autor:
Sungchan Yun
Publikováno v:
Langmuir. 36:14864-14871
Reducing the residence time of drops on solids has been attracting much attention in a wide range of industrial methods, such as self-cleaning and anti-icing. Classical drop dynamics is generally confined to circular symmetry and a theoretical limit
Autor:
Sungchan Yun
Publikováno v:
Polymers, Vol 13, Iss 4296, p 4296 (2021)
Polymers; Volume 13; Issue 24; Pages: 4296
Polymers
Polymers; Volume 13; Issue 24; Pages: 4296
Polymers
An initial drop shape can alter the bouncing dynamics and significantly decrease the residence time on superhydrophobic surfaces. Elliptical footprint drops show asymmetric dynamics owing to a pronounced flow driven by the initial drop shape. However
Publikováno v:
Physics of Fluids. 34:102104
Impinging Janus drops can be stably produced by adding a high-viscosity drop to a low-viscosity drop. Here, we investigate the dynamic features of bouncing Janus drops on a solid substrate for an exploration of the effects of the viscosity ratio, ini
Autor:
Sungchan Yun, WooSeok Choi
Publikováno v:
Polymers
Volume 13
Issue 17
Polymers, Vol 13, Iss 2940, p 2940 (2021)
Volume 13
Issue 17
Polymers, Vol 13, Iss 2940, p 2940 (2021)
Controlling the residence time of drops on the solid surface is related to a wide spectrum of engineering applications, such as self-cleaning and anti-icing. The symmetry-breaking dynamics induced by the initial drop shape can promote drop bouncing.