Molecular Dynamics Simulation Of Adiabatic Two-Phase Flow In Nanochannels

Ran, Yunmin and Bertola, Volfango ORCID: 0000-0001-5357-6191 (2023) Molecular Dynamics Simulation Of Adiabatic Two-Phase Flow In Nanochannels. In: The 9th World Congress on Mechanical, Chemical, and Material Engineering, 2023-8-6 - 2023-8-8.

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Abstract

The two-phase flow of argon fluid in a nanochannel is investigated by molecular dynamics simulations (MDS). The nanochannel consists of two parallel copper plates with the length of 2000 Å and the height of 120 Å, where the density of liquid argon is 1316.5 kg/m3 at 100 K. An external driving force, ranging from 0.001 to 0.005 eV/ Å, was applied along the flow direction to fluid particles at the channel inlet during simulations. The flow patterns were obtained from the density distribution. Based on flow patterns, the void fraction was discussed as a function of the mean flow velocity. When the initial filling ratio is 67 %, the void fractions of different velocities are all close to 33%, which means these simulations are consistent with the homogeneous model. Different filling ratios were also analysed. As the filling ratio is increased, the bubble size decreases and the void fraction also decreases. Molecular dynamics simulation show that under these conditions the flow is adequately described by the homogeneous model.

Item Type:	Conference or Workshop Item (Unspecified)
Divisions:	Faculty of Science and Engineering > School of Engineering
Depositing User:	Symplectic Admin
Date Deposited:	29 Aug 2023 08:43
Last Modified:	03 Apr 2024 03:48
DOI:	10.11159/htff23.173
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3172351