Evaporation driven by conductive heat transport
| Autor: | Jadran Vrabec, Simon Homes, Matthias Heinen, Johann Fischer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Biophysics Evaporation Thermodynamics Condensed Matter Physics 530 Physik Evaporation coefficient molecular dynamics evaporation Molecular dynamics Lennard–Jones fluid ddc:530 Physical and Theoretical Chemistry evaporation coefficient Molecular Biology Electrical conductor heat transport Physics::Atmospheric and Oceanic Physics |
| Popis: | Molecular dynamics simulations are conducted to investigate the evaporation of the truncated (2.5��) 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. |
| Databáze: | OpenAIRE |
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