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Gewählte Publikation:

Homes, S; Heinen, M; Vrabec, J; Fischer, J.
(2021): Evaporation driven by conductive heat transport
MOL PHYS. 2021; 119(15-16), e1836410 FullText FullText_BOKU

Abstract:
Molecular dynamics simulations are conducted to investigate the evaporation of the truncated (2.5 sigma) and shifted Lennard-Jones fluid into vacuum. Evaporation is maintained under stationary conditions, while the bulk liquid temperature and the thermal driving force gradient are varied over wide ranges. It is found that the particle flux and the energy flux solely depend on the interface temperature. Both of these quantities are correlated to estimate their values for macroscopically large systems. The latter is analysed by a hydrodynamic energy balance, considering conductive heat transport by Fourier's law. Following the Hertz-Knudsen approach, the evaporation coefficient is determined and found to be in good agreement with literature data based on the kinetic equation for fluids and molecular dynamics. [GRAPHICS] .
Autor*innen der BOKU Wien:
Fischer Johann
BOKU Gendermonitor:


Find related publications in this database (Keywords)
Evaporation
evaporation coefficient
heat transport
molecular dynamics
Lennard-Jones fluid


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