期刊
PHYSICAL REVIEW B
卷 79, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.184107
关键词
aluminium; drops; equations of state; laser materials processing; liquid films; liquid metals; liquid theory; liquid-vapour transformations; numerical analysis
The expansion of a thin metallic layer isochorically heated by a subpicosecond laser pulse is studied theoretically and numerically. An analytical model that accounts for the liquid-vapor phase transition in expanding flow is developed. Numerical simulations performed for an aluminum target that is described by a multiphase equation of state confirm the analytical model. A repartition of the liquid and vapor phases in the expanding cloud is studied and the expressions for sizes of liquid droplets formed in the relaxation process are obtained. These estimates are in agreement with recent experimental and numerical results.
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