342 citations · 448 across the 10 of their papers we have counts for
11 papers
Droplet impact on surfactant-laden thin liquid films: Vortex ring dynamics
Hatim Ennayar, Hyoungsoo Kim, Jeanette Hussong
Droplet impact on surfactant-laden thin liquid films is investigated experimentally with emphasis on vortex ring dynamics. Bottom- and side-view imaging reveal that increasing surf…
On the vortex ring formation and mixing in thin films upon droplet impact
Hatim Ennayar, Juan Camilo Dueñas Torres, Philipp Brockmann +2
When a droplet impacts a liquid film, a vortex ring form and govern momentum and species transport. We experimentally investigate vortex ring formation, propagation and instability…
Digital Health Discussion Through Articles Published Until the Year 2021: A Digital Topic Modeling Approach
Junhyoun Sung, Hyungsook Kim
The digital health industry has grown in popularity since the 2010s, but there has been limited analysis of the topics discussed in the field across academic disciplines. This stud…
Anomalous crystalline ordering of particles in a viscoelastic fluid under high shear
Sijie Sun, Nan Xue, Stefano Aime +5
Addition of particles to a viscoelastic suspension dramatically alters the properties of the mixture, particularly when it is sheared or otherwise processed. Shear-induced stretchi…
Non-uniformly receding contact line breaks axisymmetric flow patterns
Hyoungsoo Kim, Naser Belmiloud, Paul W. Mertens
We investigate the internal flow pattern of an evaporating droplet using tomographic particle image velocimetry (PIV) when the contact line non-uniformly recedes. We observe a thre…
Three-dimensional particle tracking velocimetry using shallow neural network for real-time analysis
Yeonghyeon Gim, Dong Kyu Jang, Dong Kee Sohn +2
Three-dimensional particle tracking velocimetry (3D-PTV) technique is widely used to acquire the complicated trajectories of particles and flow fields. It is known that the accurac…
Uniform coating of self-assembled non-iridescent colloidal nanostructures using Marangoni effects and polymers
Seung Yeol Lee, Hyoungsoo Kim, Shin-Hyun Kim +1
Colloidal crystals exhibit structural color without any color pigment due to the crystals' periodic nanostructure, which can interfere with visible light. This crystal structure is…
Rivulet flow over a flexible beam
P. D. Howell, H. Kim, M. G. Popova +1
We study theoretically and experimentally how a thin layer of liquid flows along a flexible beam. The flow is modelled using lubrication theory and the substrate is modelled as an…
Controlled uniform coating from the interplay of Marangoni flows and surface-adsorbed macromolecules
Hyoungsoo Kim, François Boulogne, Eujin Um +3
Surface coatings and patterning technologies are essential for various physicochemical applications. In this Letter, we describe key parameters to achieve uniform particle coatings…
Deposition of quantum dots in a capillary tube
Yong Lin Kong, François Boulogne, Hyoungsoo Kim +3
The ability to assemble nanomaterials, such as quantum dots, enables the creation of functional devices that present unique optical and electronic properties. For instance, light-e…
Curvature suppresses the Rayleigh-Taylor instability
Philippe H. Trinh, Hyoungsoo Kim, Naima Hammoud +3
The dynamics of a thin liquid film on the underside of a curved cylindrical substrate is studied. The evolution of the liquid layer is investigated as the film thickness and the ra…