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

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Zou, Yu Huai, Xiulan Liang, Shiqiang
Copyright Year	2008
Abstract	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.
Starting Page	595
Ending Page	603
Page Count	9
File Format	PDF
ISBN	9780791848715
DOI	10.1115/IMECE2008-67228
e-ISBN	9780791838402
Volume Number	Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
Conference Proceedings	ASME 2008 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2008-10-31
Publisher Place	Boston, Massachusetts, USA
Access Restriction	Subscribed
Subject Keyword	Water Potential energy Temperature Oxygen Hydrogen Equilibrium (physics) Atoms Molecular dynamics simulation Nitrogen Boiling Pressure Nucleation (physics) Bubbles Heat Simulation Energy conversion Explosives Lennard-jones potential
Content Type	Text
Resource Type	Article

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