Dynamics of water droplet on a heated nanotubes surface

Seol Ha Kim; Ho Seon Ahn; Joonwon Kim; Massoud Kaviany; Moo Hwan Kim

doi:10.1063/1.4809944

Dynamics of water droplet on a heated nanotubes surface

Seol Ha Kim, Ho Seon Ahn, Joonwon Kim, Massoud Kaviany, Moo Hwan Kim

Department of Precision Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

This study investigated an effect of nanotubes on a heated surface onto Leidenfrost droplet through high speed visualization and momentum balance analysis. Delayed cutback phenomena and Leidenfrost Point (LFP) by dramatically high heating level were observed, and it is elucidated through wettable and spreadable features induced by nanotubes. As much delayed LFP, transient boiling regime with explosion-like dynamics of a water droplet on the nanotubes was observed. Furthermore, nanotubes required higher wall temperature to maintain non wetting cushion, due to the induced slip condition by porous features.

Original language	English
Article number	233901
Journal	Applied Physics Letters
Volume	102
Issue number	23
DOIs	https://doi.org/10.1063/1.4809944
State	Published - 10 Jun 2013

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abstract = "This study investigated an effect of nanotubes on a heated surface onto Leidenfrost droplet through high speed visualization and momentum balance analysis. Delayed cutback phenomena and Leidenfrost Point (LFP) by dramatically high heating level were observed, and it is elucidated through wettable and spreadable features induced by nanotubes. As much delayed LFP, transient boiling regime with explosion-like dynamics of a water droplet on the nanotubes was observed. Furthermore, nanotubes required higher wall temperature to maintain non wetting cushion, due to the induced slip condition by porous features.",

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AU - Seon Ahn, Ho

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AU - Kaviany, Massoud

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PY - 2013/6/10

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AB - This study investigated an effect of nanotubes on a heated surface onto Leidenfrost droplet through high speed visualization and momentum balance analysis. Delayed cutback phenomena and Leidenfrost Point (LFP) by dramatically high heating level were observed, and it is elucidated through wettable and spreadable features induced by nanotubes. As much delayed LFP, transient boiling regime with explosion-like dynamics of a water droplet on the nanotubes was observed. Furthermore, nanotubes required higher wall temperature to maintain non wetting cushion, due to the induced slip condition by porous features.

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Dynamics of water droplet on a heated nanotubes surface

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