dorsal/arxiv
View SchemaMolecular-Dynamics Simulation of Vulcanian Eruption
| Authors | Satoshi Yukawa, Nobuyasu Ito |
|---|---|
| Categories | |
| ArXiv ID | physics/0510147 |
| URL | https://arxiv.org/abs/physics/0510147 |
Abstract
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.
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"abstract": "Vulcanian explosive eruption, which is a nonlinear and nonequilibrium abrupt\ndynamics of magma-gas mixture, is modeled by a two-component Lennard-Jones\nparticle system. Molecular-dynamics simulation of a shock-tube experiment gives\nconsistent results with a explosive eruption picture of volcanology; Shock wave\nand expansion wave are reproduced. In addition bubble nucleation of a gas\ncomponent in the magma melt and spinodal-like decomposition are observed in the\nsimulation. The result is also compared with a continuum hydrodynamic model;\nQualitative features of continuum dynamics are reproduced by the present model.\nWe find that the particle description of dynamics is an effective method in\nsuch kind of abrupt dynamics.",
"arxiv_id": "physics/0510147",
"authors": [
"Satoshi Yukawa",
"Nobuyasu Ito"
],
"categories": [
"physics.geo-ph",
"physics.comp-ph"
],
"title": "Molecular-Dynamics Simulation of Vulcanian Eruption",
"url": "https://arxiv.org/abs/physics/0510147"
},
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