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Main Title: Bulk viscosity of liquid noble gases
Author(s): Chatwell, René Spencer
Vrabec, Jadran
Type: Article
Language Code: en
Abstract: An equation of state for the bulk viscosity of liquid noble gases is proposed. On the basis of dedicated equilibrium molecular dynamics simulations, a multi-mode relaxation ansatz is used to obtain precise bulk viscosity data over a wide range of liquid states. From this dataset, the equation of state emerges as a two-parametric power function with both parameters showing a conspicuous saturation behavior over temperature. After passing a temperature threshold, the bulk viscosity is found to vary significantly over density, a behavior that resembles the frequency response of a one pole low-pass filter. The proposed equation of state is in good agreement with available experimental sound attenuation data.
URI: https://depositonce.tu-berlin.de/handle/11303/11023.2
http://dx.doi.org/10.14279/depositonce-9909.2
Issue Date: 3-Mar-2020
Date Available: 27-Apr-2020
DDC Class: 530 Physik
540 Chemie und zugeordnete Wissenschaften
Subject(s): noble gas
viscosity
molecular dynamics
liquid state
equation of state
License: http://rightsstatements.org/vocab/InC/1.0/
Journal Title: Journal of Chemical Physics
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 152
Issue: 9
Article Number: 094503
Publisher DOI: 10.1063/1.5142364
EISSN: 1089-7690
ISSN: 0021-9606
Notes: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Chem. Phys. 152, 094503 (2020) and may be found at https://doi.org/10.1063/1.5142364.
Appears in Collections:FG Thermodynamik und Thermische Verfahrenstechnik » Publications

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2 10.14279/depositonce-9909.2 2020-04-27 12:00:49.57 Published version
1 10.14279/depositonce-9909 2020-04-27 11:59:08.0
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