Corpus ID: 235742668

Interplay of viscosity and surface tension for ripple formation by laser melting

@inproceedings{Morawetz2021InterplayOV,
  title={Interplay of viscosity and surface tension for ripple formation by laser melting},
  author={Klaus Morawetz and Sarah Trinschek and Evgeny L. Gurevich},
  year={2021}
}
A model for ripple formation on liquid surfaces exposed to an external laser or particle beam and a variable ground is developed. The external incident beam is hereby mechanically coupled to the liquid surface due to surface roughness. Starting from the Navier Stokes equation the coupled equations for the velocity potential and the surface height are derived in a shallow-water approximation with special attention to viscosity. The resulting equations obey conservation laws for volume and… Expand

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