Explosive boiling of liquid argon films on flat and nanostructured surfaces

Because of the effects of the nanostructure, phase change behaviors on flat and nanostructured surfaces display distinct features. In this work, the molecular dynamics simulation method is employed to investigate the onset temperature of explosive boiling (T s ) with various film thicknesses, pillar...

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Bibliographic Details
Published inNumerical heat transfer. Part A, Applications Vol. 78; no. 3; pp. 94 - 105
Main Authors Liao, Ming-Jun, Duan, Li-Qiang
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 02.08.2020
Taylor & Francis Ltd
Subjects
Argon
Boiling
Film thickness
Flat surfaces
Molecular dynamics
Nanostructure
Simulation
Wettability
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Summary:Because of the effects of the nanostructure, phase change behaviors on flat and nanostructured surfaces display distinct features. In this work, the molecular dynamics simulation method is employed to investigate the onset temperature of explosive boiling (T s ) with various film thicknesses, pillar heights, and wettability. The simulation results show that T s decreases with the film thickness on both wettability flat surfaces. However, the decreasing rates have the significant distinctions, where the difference between two surfaces of T s with the identical film thickness decreases. In addition, the simulation results demonstrate that all the values of T s on nanostructured surfaces are lower than those on flat surfaces with the same film thickness. With the increase of the film thickness, T s presents a decreasing trend on both wettability and nanostructured surfaces, especially with the liquid film with the thickness over 6 nm, where a completely opposite conclusion compared to the flat surface is represented.
ISSN:1040-7782
1521-0634
DOI:10.1080/10407782.2020.1777801