Explosive boiling of water films adjacent to heated surfaces: A microscopic description

被引:187
作者
Dou, YS
Zhigilei, LV
Winograd, N
Garrison, BJ [1 ]
机构
[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA
[2] Penn State Univ, Inst Mat Res, University Pk, PA 16802 USA
[3] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22903 USA
关键词
D O I
10.1021/jp003913o
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Molecular dynamics simulations are used to investigate the separation of water films adjacent to a hot metal surface. The simulations clearly show that the water layers nearest the surface overheat and undergo explosive boiling. For thick films, the expansion of the vaporized molecules near the surface forces the outer water layers to move away from the surface. These results are of interest for mass spectrometry of biological molecules, steam cleaning of surfaces, and medical procedures.
引用
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页码:2748 / 2755
页数:8
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