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Main Title: Evaporation driven by conductive heat transport
Author(s): Homes, Simon
Heinen, Matthias
Vrabec, Jadran
Fischer, Johann
Type: Article
Abstract: Molecular dynamics simulations are conducted to investigate the evaporation of the truncated (2.5σ) 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.
Subject(s): evaporation
evaporation coefficient
heat transport
molecular dynamics
Lennard–Jones fluid
Issue Date: 24-Oct-2020
Date Available: 3-Dec-2020
Language Code: en
DDC Class: 530 Physik
Sponsor/Funder: DFG, 84292822, TRR 75: Tropfendynamische Prozesse unter extremen Umgebungsbedingungen
BMBF, 01IH16008, Verbundprojekt: TaLPas - Task-basierte Lastverteilung und Auto-Tuning in der Partikelsimulation
Journal Title: Molecular Physics
Publisher: Taylor & Francis
Article Number: e1836410
Publisher DOI: 10.1080/00268976.2020.1836410
EISSN: 1362-3028
ISSN: 0026-8976
TU Affiliation(s): Fak. 3 Prozesswissenschaften » Inst. Prozess- und Verfahrenstechnik » FG Thermodynamik und Thermische Verfahrenstechnik
Appears in Collections:Technische Universität Berlin » Publications

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