Vasilios Alexiades, David Autrique
Abstract:
Laser ablation is used in a growing number of applications in various
areas including medicine, archaeology, chemistry, environmental and
materials sciences.
In this work the heat transfer and phase change phenomena during
nanosecond laser ablation of a copper (Cu) target in a helium (He)
background gas at atmospheric pressure are presented.
An enthalpy model is outlined, which accounts for heating, melting, and
vaporization of the target.
As far as we know, this is the first model that connects the
thermodynamics and underlying kinetics of this challenging phase change
problem in a self-consistent way.
Published September 25, 2010.
Math Subject Classifications: 92C45, 35K60, 65M99.
Key Words: Laser ablation; phase change; enthalpy scheme; thermochemistry;
finite volume scheme.
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Vasilios Alexiades Department of Mathematics University of Tennessee, Knoxville, TN 37996, USA. and Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. email: alexiades@utk.edu |
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David Autrique Department of Chemistry University of Antwerp, Antwerp, Belgium email: david.autrique@ua.ac.be |
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