Molecular dynamics simulation of evaporation and explosive boiling over nanostructured surfaces

2013 ◽  
Author(s):  
Hamid Reza Seyf
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Dynamics Simulation ◽  
Explosive Boiling ◽  
Nanostructured Surfaces

Molecular Dynamics Simulation for Bubble Nucleation of Water and Liquid Nitrogen in Explosive Boiling

2008 ◽  
Author(s):  
Yu Zou ◽  
Xiulan Huai ◽  
Shiqiang Liang
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Potential Energy ◽  
Liquid Nitrogen ◽  
Equilibrium Temperature ◽  
Bubble Nucleation ◽  
Dynamics Simulation ◽  
Molecular Cluster ◽  
Hydrogen Atoms ◽  
Explosive Boiling

Molecular dynamics simulation is carried out for the bubble nucleation of water and liquid nitrogen in explosive boiling. The heat is transferred into the simulation system by rescaling the velocity of the molecules. When heat is added into the molecular cluster, liquid initial equilibrium temperature and molecular cluster size can affect the energy conversion in the process of bubble nucleation. The potential energy of the system violently varies at the beginning of the bubble nucleation, and then varies around a fixed value. At the end of the bubble nucleation, the potential energy of the system slowly increases. In the process of bubble nucleation of explosive boiling, the lower initial equilibrium temperature leads to the bigger size of the molecular cluster. With more heat added into the system of the simulation cell, the potential energy varies in a larger range. The primary potential of water molecules includes Lennard-Jones potential energy and Columbic force caused by static charges of oxygen and hydrogen atoms. This is the reason why the bubble nucleation of water is different from that of liquid nitrogen. Pressure controlling is applied in the simulation of water, which makes the bubble more fully extended than that of liquid nitrogen.

Molecular dynamics simulation on explosive boiling of liquid argon film on copper nanochannels

2017 ◽  
Vol 113 ◽  
pp. 208-214 ◽  
Author(s):  
Shiwei Zhang ◽  
Feng Hao ◽  
Haimu Chen ◽  
Wei Yuan ◽  
Yong Tang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Liquid Argon ◽  
Dynamics Simulation ◽  
Explosive Boiling

Tuning nanostructured surfaces with hybrid wettability areas to enhance condensation

Nanoscale ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 459-466 ◽  
Author(s):  
Shan Gao ◽  
Wei Liu ◽  
Zhichun Liu
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Dynamics Simulation ◽  
Nanostructured Surfaces ◽  
Nucleation Growth

The condensation processes on various nanopillar surfaces, including the nucleation, growth and coalescence of nanodroplets are characterized through molecular dynamics simulation.

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