Effect of nanostructure on rapid boiling of water on a hot copper plate: a molecular dynamics study

T Fu and YJ Mao and Y Tang and YW Zhang and W Yuan, HEAT AND MASS TRANSFER, 52, 1469-1478 (2016).

DOI: 10.1007/s00231-015-1668-2

Molecular dynamic simulations are performed to study the effects of nanostructure on rapid boiling of water that is suddenly heated by a hot copper plate. The results show that the nanostructure has significant effects on energy transfer from solid copper plate to liquid water and phase change process from liquid water to vapor. The liquid water on the solid surface rapidly boil after contacting with an extremely hot copper plate and consequently a cluster of liquid water moves upward during phase change. The temperature of the water film when it separates from solid surface and its final temperature when the system is at equilibrium strongly depend on the size of the nanostructure. These temperatures increase with increasing size of nanostructure. Furthermore, a non-vaporized molecular layer is formed on the surface of the copper plate even continuous heat flux is passing into water domain through the plate.

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