Search Results - "Kim, Seol Ha"

Droplet impact and LFP on wettability and nanostructured surface by Kim, Seol Ha, Jiang, Yuyan, Kim, Hyungmo

“…•Vapor recoil pressure to the droplet rebounding is small, especially on hydrophilic.•Strong nucleation activity at L-S contact determines the droplet…”
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Leidenfrost point and droplet dynamics on heated micropillar array surface by Kim, Seol Ha, Lee, Gicheol, Kim, HyungMo, Kim, Moo Hwan

“…•Leidenfrost Points (LFPs) of a water dropt on various designed texture silicon were evaluated.•LFPs has an optimal trend depending on micropillar density…”
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Boiling heat transfer and critical heat flux evaluation of the pool boiling on micro structured surface by Kim, Seol Ha, Lee, Gi Cheol, Kang, Jun Young, Moriyama, Kiyofumi, Kim, Moo Hwan, Park, Hyun Sun

“…•Boiling heat transfer and critical heat flux of pool boiling on microstructures were evaluated.•Twelve microstructured surface and one bare for the boiling…”
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Micro-particle image velocimetry visualization study of thermal Buoyant-Marangoni flow in microtubes by Kim, Seol Ha, Wang, Tao, Zhang, Lei, Jiang, Yuyan, Li, Zhigang

“…•Thermal Marangoni-Buoyant flow near evaporating meniscus is investigated in various tube size and heating condition.•The internal flow structure, driven by…”
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Mechanism study of departure of nucleate boiling on forced convective channel flow boiling by Kim, Seol Ha, Chu, In Cheol, Choi, Moon Hee, Euh, Dong Jin

“…•DNB mechanisms on forced convective flow environments has been investigated through synchronized visualization.•Thin liquid layer is formed, as a precursor…”
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Leidenfrost temperature on porous wick surfaces: Decoupling the effects of the capillary wicking and thermal properties by Lee, Gi Cheol, Kim, Seol Ha, Kang, Jun-young, Kim, Moo Hwan, Jo, HangJin

“…•Various surface factors on porous wick surfaces were quantified reliably.•The individual effect of each surface factor on TLFP was analyzed.•Ethanol was used…”
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Hydrodynamic analysis of the advancing dynamic contact angle in microtube by Kim, Seol Ha, Wang, Tao, Zhang, Lei, Jiang, Yuyan

“…We explored the hydrodynamic features of dynamic wetting both theoretically and experimentally. We studied the triple-line motions of glycerol-water solutions…”
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Nonwettable Hierarchical Structure Effect on Droplet Impact and Spreading Dynamics by Kim, Hyungmo, Kim, Seol Ha

“…In this study, the nano/micro hierarchical structure effect of a nonwettable surface on droplet impact was investigated by high-speed visualization. A…”
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MHD Analysis and Preparation of an Experiment for Developing the Korean Test Blanket Module by Lee, Dong Won, Yoon, Jae Sung, Kim, Seol Ha, Kim, Moo Hwan, Cho, Seungyon

“…To develop a Korean (KO) test blanket module (TBM) for an International Thermonuclear Experimental Reactor (ITER), particularly for a liquid breeder type, a…”
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Heterogeneous bubble nucleation on ideally-smooth horizontal heated surface by Jo, HangJin, Kaviany, Massoud, Kim, Seol Ha, Kim, Moo Hwan

“…Our experiments and analyses of the bubble incipient on ideally-smooth, horizontal heated surface confirm the observed low superheat and the weak…”
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A study of boiling on surfaces with temperature-dependent wettability by lattice Boltzmann method by Zhang, Lei, Wang, Tao, Jiang, Yuyan, Kim, SeolHa, Guo, Chaohong

“…•Boiling performance on surface with temperature-dependent wettability was studied.•The smart surface can take advantages of both hydrophilic and hydrophobic…”
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MHD analysis and preparation of an experiment for developing the Korean Test Blanket Module by Dong Won Lee, Jae Sung Yoon, Seol Ha Kim, Muhwan Kim, Seungyon Cho

“…To develop a Korean Test Blanket Module (TBM) for an International Thermonuclear Experimental Reactor (ITER), particularly for a liquid breeder type, a…”
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The role of surface energy in heterogeneous bubble growth on ideal surface by Kim, Seol Ha, Lee, Gi Cheol, Kang, Jun Young, Moriyama, Kiyofumi, Park, Hyun Sun, Kim, Moo Hwan

“…•Bubble growth on an ideal smooth surface of nucleate boiling has been analyzed.•Departure bubble size and base size depending on the wetting condition has…”
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A study of nucleate bubble growth on microstructured surface through high speed and infrared visualization by Kim, Seol Ha, Lee, Gi Cheol, Kang, Jun Young, Park, Hyun Sun, Kim, Moo Hwan

“…We studied bubble growth on a microstructured surface during nucleate boiling using optical high-speed and infrared (IR) cameras. The effects of structured…”
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Critical heat flux and nucleate boiling on several heterogeneous wetting surfaces: Controlled hydrophobic patterns on a hydrophilic substrate by Jo, HangJin, Kim, SeolHa, Park, Hyun Sun, Kim, Moo Hwan

“…•We conducted CHF experiments on heterogeneous wetting surfaces.•The heterogeneous wetting surface was composed of a hydrophilic substrate with hydrophobic…”
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Induced liquid-solid contact via micro/nano multiscale texture on a surface and its effect on the Leidenfrost temperature by Lee, Gi Cheol, Kang, Jun-young, Park, Hyun Sun, Moriyama, Kiyofumi, Kim, Seol Ha, Kim, Moo Hwan

“…•Heat transfer performance of a droplet on modified surface is evaluated.•Micro/nano multiscale textured surface (MTS) shows a super-hydrophilic property.•MTS…”
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Dynamics of water droplet on a heated nanotubes surface by Kim, Seol Ha, Seon Ahn, Ho, Kim, Joonwon, Kaviany, Massoud, Hwan Kim, Moo

“…This study investigated an effect of nanotubes on a heated surface onto Leidenfrost droplet through high speed visualization and momentum balance analysis…”
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Film boiling heat transfer on a completely wettable surface with atmospheric saturated distilled water quenching by Kang, Jun-young, Kim, Seol Ha, Jo, HangJin, Park, Gunyeop, Ahn, Ho Seon, Moriyama, Kiyofumi, Kim, Moo Hwan, Park, Hyun Sun

“…•Complete wetting characteristic (θ∼0° with liquid-spreading) affects not only minimum heat flux q″min and minimum film boiling temperature Tmin, but also heat…”
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Heat flux partitioning analysis of pool boiling on micro structured surface using infrared visualization by Kim, Seol Ha, Lee, Gi Cheol, Kang, Jun Young, Moriyama, Kiyofumi, Park, Hyun Sun, Kim, Moo Hwan

“…•Heat flux partitioning analysis of nucleate pool boiling has been performed, and discussed with previous literatures.•The evaporative and quenching heat flux…”
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Experimental study of water droplets on over-heated nano/microstructured zirconium surfaces by Kim, Seol Ha, Ahn, Ho Seon, Kim, Joonwon, Kim, Moo Hwan, Park, Hyun Sun

“…•Heat transfer performance of a droplet on a modified zirconium surface is evaluated.•Modified (nano/micro-) surfaces enhanced heat transfer rate and…”
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