Abstract
We Use Molecular Dynamics (MD) Simulations to Study the Transient Evaporation and Condensation of a Pure Fluid Ar in a Nanochannel. in the MD Model, the Evaporation and Condensation of Fluid Ar is Initiated by a Sudden Increase of the Temperature or Periodically Varying the Temperature in the Solid Substrate on One Side of the Nanochannel. in Both Cases, We Find the Transient Evaporation and Condensation Rates Obtained Directly from MD Simulations Are in Good Agreement with the Predictions from the Schrage Relationships. Furthermore, Our Analyses Show that the Kinetics of the Transient Heat and Mass Transfer between the Evaporating and the Condensing Surfaces in the Nanochannel Are Mainly Controlled by Heat and Mass Diffusion in the Vapor Rather Than by Convection. the Simulation Results Indicate that the Schrage Relationships Are Capable of Accurately Describing the Transient Evaporation/condensation Processes and their Rates Even under a High-Frequency Oscillatory Driving Force Condition.
Recommended Citation
Z. Liang et al., "A Molecular Dynamics Study of Transient Evaporation and Condensation," International Journal of Heat and Mass Transfer, vol. 149, article no. 119152, Elsevier, Mar 2020.
The definitive version is available at https://doi.org/10.1016/j.ijheatmasstransfer.2019.119152
Department(s)
Mechanical and Aerospace Engineering
International Standard Serial Number (ISSN)
0017-9310
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Elsevier, All rights reserved.
Publication Date
01 Mar 2020
Comments
National Science Foundation, Grant N00014-17-1-2767