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Elastic properties of dense hard-sphere fluids

Khrapak, Sergey (2019) Elastic properties of dense hard-sphere fluids. Physical Review E, 100, 032138. American Physical Society. DOI: 10.1103/PhysRevE.100.032138 ISSN 1539-3755

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Abstract

A new analysis of elastic properties of dense hard-sphere (HS) fluids is presented, based on the expressions derived by Miller [J. Chem. Phys. 50, 2733 (1969)]. Important consequences for HS fluids in terms of sound waves propagation, Poisson’s ratio, Stokes-Einstein relation, and generalized Cauchy identity are explored. Conventional expressions for high-frequency elastic moduli for simple systems with continuous and differentiable interatomic interaction potentials are known to diverge when approaching the HS repulsive limit. The origin of this divergence is identified here. It is demonstrated that these conventional expressions are only applicable for sufficiently soft interactions and should not be applied to HS systems. The reported results can be of interest in the context of statistical physics, physics of fluids, soft condensed matter, and granular materials.

Item URL in elib:https://elib.dlr.de/129409/
Document Type:Article
Title:Elastic properties of dense hard-sphere fluids
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Khrapak, SergeySergey.Khrapak (at) dlr.deUNSPECIFIED
Date:25 September 2019
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:100
DOI :10.1103/PhysRevE.100.032138
Page Range:032138
Publisher:American Physical Society
ISSN:1539-3755
Status:Published
Keywords:hard-sphere systems, hard-sphere fluids, elastic properties, sound velocities, collective modes, transport properties
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Komplexe Plasmen / Theory, Simulation
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Khrapak, Sergey
Deposited On:07 Oct 2019 09:21
Last Modified:07 Oct 2019 09:36

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