Автор |
Guo Ying-Kui |
Автор |
Guo Zeng-Yuan |
Автор |
Liang Xin-Gang |
Дата выпуска |
2001-01-01 |
dc.description |
The propagation behaviour of an initial thermal perturbation in liquid argon is simulated by the molecular dynamics method. The 12-6 Lennard-Jones potential and mirror boundary conditions are employed in the 32768-particle three-dimensional simulation. Macroscopic characteristics such as the kinetic temperature, pressure and momentum profiles are monitored during the simulation in order to examine the heat propagation behaviour under a timescale comparable with the relaxation time. The results show that the behaviour is still diffusion-like; no features predicted by the Cattaneo-Vernotte model have been found. The wave-like front of the local temperature may be caused by the adiabatic compression and expansion by the pressure wave generated by the thermal expansion. PACS: 44. 10. +i, 02. 70. Ns, 61. 25. Bi |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Three-Dimensional Molecular Dynamics Simulation on Heat Propagation in Liquid Argon |
Тип |
paper |
DOI |
10.1088/0256-307X/18/1/325 |
Electronic ISSN |
1741-3540 |
Print ISSN |
0256-307X |
Журнал |
Chinese Physics Letters |
Том |
18 |
Первая страница |
71 |
Последняя страница |
73 |
Аффилиация |
Guo Ying-Kui; Department of Engineering Mechanics, Tsinghua University, Beijing 100084 |
Аффилиация |
Guo Zeng-Yuan; Department of Engineering Mechanics, Tsinghua University, Beijing 100084 |
Аффилиация |
Liang Xin-Gang; Department of Engineering Mechanics, Tsinghua University, Beijing 100084 |
Выпуск |
1 |