Molecular-Dynamics Simulation of Vulcanian Eruption
地球物理
2007-05-23 v1 计算物理
摘要
Vulcanian explosive eruption, which is a nonlinear and nonequilibrium abrupt dynamics of magma-gas mixture, is modeled by a two-component Lennard-Jones particle system. Molecular-dynamics simulation of a shock-tube experiment gives consistent results with a explosive eruption picture of volcanology; Shock wave and expansion wave are reproduced. In addition bubble nucleation of a gas component in the magma melt and spinodal-like decomposition are observed in the simulation. The result is also compared with a continuum hydrodynamic model; Qualitative features of continuum dynamics are reproduced by the present model. We find that the particle description of dynamics is an effective method in such kind of abrupt dynamics.
引用
@article{arxiv.physics/0510147,
title = {Molecular-Dynamics Simulation of Vulcanian Eruption},
author = {Satoshi Yukawa and Nobuyasu Ito},
journal= {arXiv preprint arXiv:physics/0510147},
year = {2007}
}
备注
4 pages, 4 figures