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| ¡¡ Influence of Temperature on Condensation
Process of Lennardª²Jones Fluid Abstract£ºEquilibrium molecular dynamics simulations were carried out in this research
to study the dynamics of the interface system composed of argon molecules at the
temperatures from 83.5K to 170K. The temperature dependences density£¬the thickness of
interface£¬the collision flux£¬the Lennardª²Jones(L-J) potential energy and L-J
potential force were obtained statistically and analyzed.The results show that when the
temperature rises£¬the thickness of interface and the collision flux increase£¬the
density and the L-J potential distribution tend to be uniform and the L-J potential force
distribution inclines to zero with the decrease of the depth of the potential well.All the
values change sharply when the system is close to the critical state.The condensation
coefficients at different temperatures obtained from this study agree with those from
other authors.In addition£¬the statistical results show that the condensation coefficient
decreases with the increase of temperature until the interface disappears when approaching
critical temperature.This phenomenon can be well explained by the interaction between the
thickness of interface and the collision flux when the temperature rises. |
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